Blending dry with wet tobacco?

I have not tried blending them, nor smoked either of them, however I'm all for blending certain tobaccos for a bowl. If your only goal is to even out the moisture level of both blends, I would say rehydrate the PA by putting it in a bowl (not pipe bowl, lol) with a damp paper towel over it, but not so the paper towel is touching the tobacco. I would also dry out the BCA on its own. However if you feel like experimenting, I would take a small equal amount of each and toss it in a plastic bag/jar, let it sit for a while to even out on moisture content, and smoke it. Good luck, and welcome to the forums!

A similar blend done by many is Carter Hall with Lane's 1Q.

This sounds like it would be similar and should work out fine.

Mix them together and jar them up for a while ... and report back!

Really sweet cavendish or aromatic blends due really well when you dilute them with a burley blend you really like.
Do it. Start at 50/50 and go from there.

Give it a try... However, I recommend starting with the blends in the mixture being at equal "dry" levels. Whatever is equal, to start with. Then, mix them together. After doing that, put them in an air-tight container and spray water on the underside lid of the cover. Repeat once per day until satisfied with the moisture level.

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As a matter of fact, I did this just two days ago with PA and BCA. It smoked ok, but I actually I actually prefer the taste of PA on its own. Even though PA is a one dimensional smoke, I dont mind it at all for a cleaning-the-garage, or yard work smoke.
On a side note, I'm currently in the middle of my "drugstore" blend shoot out to get an idea of which one I like the most. Thus far I've smoked PA, Carter Hall, and Sir Walter. To this point it seems to be PA then Carter Hall, and Sir Walter. I've got a few more to try before I declare a winner for my cellar. I've also heard that mixing PA and CH is good, which I did, but I didn't really find it anhy better than either of them on their own.
Sorry to go on a tangent, but the mixing PA got my mind wandering.

I smoked Half & Half for 21 years, exclusively. But, then I decided to try creating my own blend of what I wanted and could never find. Thanks to the help of the late Craig Tarler, of C&D, the rest is history. I tried Half & Half after that and could not tolerate the "goopy" caused by the preservative "propylene glycol". I am converted to tobacco produced without this preservative designed and used to extend shelf life. Manufacturers like Cornell and Diehl only use distilled water and they do not use preservatives to extend shelf life. Most, if not all, of over-the-counter blends use PG as a preservative. But, if after all your trials you find what pleases you, by all means, enjoy it. After all, I did so for many years. You do owe it to yourself to try tinned blends that do not use PG as a preservative. You might also become a convert, as I was. In the end, just smoke what you like a and like what you smoke. Enjoy!

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A comment here relating to the original question.
With my limited experience Im still sorting out the causes of tongue bite. I suspect that moisture and Virginia's disagree with my individual body ph. Some overly moist tobaccos Ive tried probably had too much propylene glycol(PG) and would never dry out no matter how long I left them open to the air. Mixing a high moisture tobacco that's high PG and a dried out burley(which doesnt bite me) would not work for me. It would only result in a mixture of biting and non-biting tobacco, not a smoother no bite smoke.
I like Latakia flavor but find it blended with Virginia and others which are not quite what Im wanting to try. Ive ordered some "blending latakia" and intend to mix it with some CH burley and see how it effect tongue bite. By smoking CH alone my tongue heals quickly. Allowing my Virginia Flakes to dry out helps some and also the biotene mouthwash, but the high content PG tobaccos are just useless in my situation. Keeping the bowl cool & moisture free, and finding the blends sold which match my body ph is the key. John Bull and Dan Tobacco Independence are the least tongue biting with latakia tones and PA and CH burleys. Got off topic somewhat but it was to support the statement:
Mixing a high moisture tobacco that's high PG and a dried out burleys would only result in a mixture of biting and non-biting tobacco for me, not a smoother no bite smoke. The PG overtime would moisten up the burley I imagine but re-hydrating would be my choice on the burley.

Not exactly mixing the tobacco, but just the other day I was smoking a cavendish blend that was a little too moist and was having a difficult time keeping it lit. I also happened to have a VA blend with me that was starting to get a little too dry but lights very well. So I took a pinch of the dry tobacco and added it on top of the moist cavendish to use as a "starter". It actually worked great. It lit the first time and I was able to smoke the entire bowl without having to re-light.