Thank you for your thoughtful and detailed response! I’m actually smoking my experimental incense blend right now (I had enough for two bowls). I agree with you that this doesn’t really smell all that much like church incense — neither the individual components nor the two mixed together — and I’m not sure I’d really enjoy a blend that was basically church incense in a pipe. But I can’t shake that sometimes a bowl with Latakia and Orientals evokes incense. Must be a combination of the creosote, wood, and whatever herbs and essences are used to make Latakia.
Thanks, it's a fun topic, Singularis. My favorite experimental mix is to use Native American style herbs like sage, spearmint, basil, and lemongrass about 50-50 with tobacco. I got 4 legal Native style herb blends from MyWorldHut.com because they had both low prices and varied ingredients.
You can have fun with supposed incenselike blends even if you don't get the aroma.
There are two categories of incense broadly speaking: European/Jewish/Church incense that emphasizes resins and involves putting incense on charcoal and South/East Asian incense sticks/cones that emphasizes sandalwood and is directly lit on fire.
The three blends that I recommended on the church incense theme - Kelembak Kemenyan, Moroccan Bazaar, and Margate - are all good blends. Kemenyan Kelembak has actual Styrax resin and it must be fine and slight enough that it adds nice scentiness without being offputting. It's hard to find in the US, but easy to get in Indonesia. I got it from a fellow piper online.
I had a bowl of "Byzantium" at C and D's shop, and it mentally evoked incense, but I take that as a psychological thing: It had nice puffs of smoke and its title has a theme associated with Orthodox Christianity. The flavor and texture didn't especially remind me of incense compared to other Oriental blends.
Non-Syrian Cyprus Latakia specifically uses Mastic tree wood for processing, and Mastic wood produces a resin that can be used in incense. I burned some Mastic drops myself. The drops can also be chewed, and have a fresh taste that is like light licorice. I am guessing that this relates to the perceived incense smell that some people get from a lot of Lat. blends.