I have a Janty Stick V2 on it's way. I am just curious which atty do the rest of you like best with this little unit? I am a diehard 510 fan so you all know what I am used to. I know I can get an adapter and use my 510 atty's, but I was actually looking forward to trying out the pen style atty/cartridges. SO help me out here, tell me which you prefer and why.