Same here, I PTBed my 510 bastomizer XL's and they are performing great. I'm really happy with how long they'll go before they need refilling.
I killed one (almost 2) of them doing the PTB mod though...I pulled the wick out the coil. In the future I'm gonna pull the cup, stem, and threading out of the carto in order to cut the wick. It's not that hard, I saw someone post you just connect the carto to a battery, and wiggle it free. Worked, and I was able to re-thread one of the wicks through the coil and saved one

The other one I stressed the coil too much and it burned out. Live and learn.