Originally Posted by dtrain

That's older 8-speed Ultegra on the Felt, current 'state of the art' is 11 speed. The Scatt and GT have 10. It's also a threaded 1" headset/fork/stem set-up. Finding/trying different stem lengths would be more challenging. But I'd be quite tempted to check that bike out if I were in your shoes. That's not a lot of miles and a quick tune-up could dial it back in.