I'm amazed that with a 600+ page knowledge base these simple questions bubble up (no pun intended!) over and over again.
And let me preface by saying there are lots of vapes that will hit harder (through water/bubbler, etc) than Mighty.
Hands down the best wpa ever was/is the diy muzzmod, I will once again praise
@elmomuzz's ingenuity. But I won't re-hash it (google it!). You gotta make your own and it takes some skills. It pre-dates any wpa that has come to market. Available mods now make it pretty much obsolete, but they are not any better.