RE: Just picked up a Trykon today...
I love my Trykon it's smooth, fast and quiet. You should be very happy, I've not had one problem with mine.
Combat: You should be just fine with 50-60, this will allow you to build proper form at a comfortable and manageable draw weight. As for the FPS, you will definitely not be "too slow." Heck people kill deer with recurves every year, and lots and lots and lots of people kill deer with 50/60's.