well it seems to be working fine, had em 3 or 4 weeks now i think im just used to them, it just feels like this past week they just dont do the job, like when i smoked som but untill i can find that and build 1 i need to know if i can get bigger hits somehowetimes i would like a real real big hit, the same with vaping i like to get a big big hit sometimes and well, i was told that the cisco lr306 was the best of the best so i got 1 from nhaler and worked well the first 2 days, i think i thought it worked well just cause i was used to the reg. 510, i just need a bigger hit really, trying to find instructions on a 6volt box mod, but can only find 3.7 and 5 volt box mod instructions.