Good luck...its still a small area to work in even with the Dual coil rba...I have been dicking around with the TFV4 RBA's and I found they arent as big as they seem...What if i wanted to put it on a smok tfv4 sub ohm tank
Bigger and Wider Builds have been done in the TFV4..Trust CrazyChef and I on that.Yea that's going to be a tall order in the TFV4.