I'm am relatively new to mech mods first one I bought off a friend was a sintinel clone with nimbus clone rda...then I decided to build my own I just got my AR MOD clone with a 454 big block clone rda and so far it's great the one thing I don't like about the 454 big block clone was that the hole one the bottom of the tip was drilled out wierd Leaving the bottom that is supposed to prevent spit back very very thin and to the point it had a white line in it (I suppose you can say what do u expect from a clone) so I decided to cut it and make the tip like a typical drip tip and I think it works better. I have been playing with different coil set ups and still looking to find that perfect one. I am currently using dual 8 wrap horizontal coils with 26 guage kanthal... what are some good coil set ups?