Yeah, what Q said. And just ditch the idea of carb pieces. Most weren't ever placed properly and with today's glass, they're just not needed. Back in the day, you never saw a carb hole plugged. Now almost all of them, come plugged. Because people want them that way. Still enough want carbs, I suppose.
Dap adapter? Dab? Well, I just got into concentrates, so my experience is limited... though I've been reading and having conversations on it. Allison with SSFG and I have talked quite a bit about this, as she wants me to ditch the Ti nail (Allison is very Earthy/Natural). I've got a nice boro nail, zero bubbles, solid built. My torch won't heat the damn thing, plus my dome is a little short for it. I would like to get a larger dome and bigger torch to try it. I also enjoy my Eclipse H2O. While the hits aren't as clean as a dab (since you load more and it goes further)... they're still satisfying and I like the ability to set it off to the side and pick it up later.
I really want a Snork. They're made by SSFG, though I believe Ray needs to make some more. Just heat the glass and kind of scrape it into the tube.
At the least, I'll probably buy a larger dome for my Boro nail.