Predator,
I too find my Timberhawk recurve to be smoother than any of the longbows I have tried.
The list of longbow/hybrids that I have tried includes; Striker Slapstick, Shrew, Bob Lee, Martin Savannah, Hummingbird, a classic D shape selfbow, Roy Hall, Caribow, MOAB, Morrison and many others I can't remember. These are all excellent bows and made by great bowyers. I do, however, feel that the longbows have more handshock and I am less accurate with them.
The longbow that felt the best was the shrew, but I would still stay with a recurve.
For me now, I personally prefer the following recurves over longbows for lack of handshock and consistent shooting; Timberhawk, Assenheimer, Rose Oak and a Bear K-mag. I like all of those with a medium or high grip.
I personally, this is just my opinion, don't think you will find any longbow that is as smooth and free of handshock as your recurve.
Just my opinion,
Charlie