I've been using the new tatroe bottom cap from Cigtechs for about a week now and love it, has perfect draw, and looks way better than the stock cap imo
Yeah I just got my bottom caps today and put one on my Tatroe
tank. Already the tatroe tank even with the Protank v1 base had a slightly better draw. I used an evod head first with protank heads on standby but the evod head draw was perfect. I usually remove a wee bit of wick or trim the silicone cup over the wicks but found I did not have to do any of that with the Tatroe base. The fit is perfect. Finish is a perfect match too.
Mine didn't come with a silicone ring (not the cup, the ring that seals between the base and the tank) and I tried it without but had leaking. Huge hits but gurgling/leaking. No problem. I just used the silicone ring off of the old protank base I had been using and I hits absolutely perfect now. Draws great. Zero leaking with 60PG/40VG at about 70degrees Farenheit.
Haven't tried it with the protank heads yet. I'm assuming the changes they made in the draw were mostly to address the too-airy draw on the protank heads but with the silicone ring added to the Tatroe base and an evod head stock it hits and feeds perfectly. Looks great.