I 'grew up' on a 510 and went to the Silver Bullet. I can't speak for the other hv mods out there but I can say that this SB has eliminated any hardware issues (outside of cartridge filling, that's the same as before). It is a 'native' 510 so no adaptor is needed for your atty.
In retrospect, the battery rotation that I used to go through with the 510 was all-consuming in and of itself. Now I change batteries once a day in the morning (whether they need it or not) and never have to think about it again. Add to this the vapor production (finally

) and throat hit (finally

) and it has made vaping much less of a seemingly unfulfilling ordeal so now I can just go about vaping and enjoying.
I have not tried the SB at 3.7v. There is a difference in flavor at 6v, but I use primarily menthol and there is not much issue there. Some of the other flavors tasted a bit sweeter at the higher voltage however this is something I never would have noticed had I not been used to them with the regular 510 battery.
Lastly, it feels really good in my hand and the 'trigger' functions seamlessly. It's a large piece so not inconspicuous but I usually tend to vape more in private or only around people I'm close to anyway.
Best to you and Merry Christmas !!
