mtbykr said:
... i ride mostly eastcoast xc:singletrack, roots, rocky, ect...
mtbykr, I grew up in Maryland and live in Austin now. I've ridden your bike ( a friend of mine has one ), a number of other 'dales ( still have a HT ), and a lot of other stuff including the HH. I've spent a lot of time riding stuff in MD, NoVA, and some stuff in Penn and New Hampshire.
I can say with huge enthusiasm that for your stated use you'll be knocked flat with the HH. The geometry is dialed around having a 100mm travel fork, it's not just the extra sturdiness. I think you may find the RX "twichy" but I doubt you'll find the HH that. The suspension on the HH ( and the RX, and the Switchblade, and a few others for that matter ) is miles ahead of the 'dale.
Spec the HH with a Fox TALAS fork and you'll get a hugely capable bike.
Lastly, at 190, I'm not sure the RX would be best suited for you ( although I'm sure people will have a differing opinion ) but I've a friend who is 260+ and loves his HH.
That's my 2c.
But don't take my word for it, I bet if you contacted Hammerhead they could connect you with someone who may let you do a test ride.
Good luck.