Cortez, I'm not sure why you think that I would have any issue with what you said. I'll quote you and I'll quote me.
You: Pipes with curving and bending airways induce condensation of the moisture in the smoke stream.
Me: interference between the tenon and the airway, due to the angles required for drilling. They are tricky to make well.
The geometry of the pipe is difficult.
There are any number of solutions to the problem - the Peterson system is one - induce the condensation and catch it. Castello, for example, does not do this, they drill the pipe with tremendous care and try to line things up so there isn't condensation. But most of the Ooms I've owned, Savinelli for example, take no such care, and the pipes smoke wet due to condensation issues caused by ugly construction.
I make Oom Pauls all the time, I love the shape. And I make the mortise wide and shallow, and this allows me to drill it just about dead center. I expect my Oom Pauls to smoke absolutely no different than any other pipe.