I have absolutely no connection with any supplier other than to give them my money
I started with the 4081, went to the 510 and finally the 810. Smoking with a passthrough on the 4081 and the 810 helped me get that good hit but I really got frustrated with that wire. I have the wall plug in and the Kensington battery pack. Still, the frustration of that wire was a bit much. Without the passthrough I'd constantly be charging batteries and the hits to me just weren't that good.
Then I got the SD and haven't used another e-cig model since. I love this thing. Don't misunderstand me, I'm not stuck on one e-cig, I want the best and am willing to spend the money right now to find that. Have to do it before DH retires and we're on fixed income.
I've sent for the prodigy and am anxious to see what I think about that. Either way, like you, I want the best hit with the least annoying attributes. So far it's the SD. I've sent for another of those as well so I'll have two SD's and 1 prodigy. When the prodigy gets here (may be a while) I'm looking forward to comparing the two for myself. But then I'll just be another among many who state their opinions on here and that's all this is, an opinion.
If you want a good hit with lots of vapor and as little hassle as possible, I'd suggest the SD, or one of the other big battery e-cigs.