Curtis,
I have played the Wishon 321LI's since they first came out, and yes the look is different than some of typical OEM hybrid designs although I've seen some OEM with some of his design features. A few things to keep in mind - I've noticed that it's very easy to align the topline of the hybrid with the target rather than the sole line or scorelines and you can end up with a closed face at impact if you're not careful. The other thing is that the Wishon hybrids usually have a .335" hosel rather than taper tip or .370 like others. The intent is to help get the ball in the air due to a larger forward bend but this can also produce a closed face. Personally, I have the 2,3 and 4 in my bag and they I've built them a little longer than typical irons, mostly just to get the swingweight correct. So, they go about a 1/2 club longer than the irons they replace.
The thing about hybrid distance is interesting since, like Brian says, the ball only knows about loft, path and clubhead speed. If you look at many of the OEM hybrids, as has been mentioned, they are built with lower lofts and at longer lengths than the same numbered iron. So, it naturally leaves a gap, maybe a large one, between the iron/hybrid transition point. It would be better if you can get a hybrid more matched to your iron set. As a component clubmaker myself(as a hobby), I'm always amazed that people pull stuff off the rack and know almost nothing about it other than it looks good and (maybe) it hits well at the range for about ten swings. As a minimum, they should get it measured for length, lie, loft, swingweight, etc and make adjustments. I've measured too many OEM clubs that weren't even close to their "specs".
So, if you do go with Adams or some other OEM, I'd suggest you work with somebody who could do some alterations to both fit you and reduce the distance gap. Regarding loft/lie, I generally consider hybrids unbendable, but someone with a good bender and experience may be able to bend it a degree or two. Luckily, lie isn't as big a deal on long irons and you might be able to have a clubmaker cherry pick the correct loft. Good luck!
Jay