rba,  or rebuild the v1 body? I've done both.  Rebuilding the v1 body it's a bit tough to get a good connection at the base without de-Claptoning the ends. The rubber is a bit soft, and deformes ez. Also ot tended to melt rather ez too. I had the best luck with 26g and a 32-34g wrap, 3 to 4 turns,  any more and the leads heat too much before good vapor production.  The taste is worse than one can imagine. Just imagine a horrible,  HORRIBLE taste, I don't recommend trying it to prove it to yourself.  Really. Personally,  I gave up on rebuilding the body with a Clapton,  and now stick with doing it in the 
rba deck. Getting a good connection is to problematic,  the wicking is a little tricky at times for a good consistent vape, tends to flood,  and they are not as rigid as a standard coil for assembly.  I, however, quite prefer a Clapton in the 
rba to almost any other build in the RBA. Although,  I still experiment. Always experimenting! 
Just my experience,  and I almost always use rebuilt v1 bodys, as I hate buying new attys.  
Luck! And vape on!