Lots of variables. My bet is the Samick you shot had the string that came with it, which is lousy. Something as simple as a good string can change the way a bow feels a LOT. Also, as mentioned, tuning makes a big difference, as does arrow weight, nock fit, your release, etc. etc. etc.
With some custom bows, you can feel a difference, with others, not so much. I've shot some very expensive custom bows that were pretty bad. The worst handshock I've ever experienced was from a "custom" recurve. The uber-cheap Samick Journey I have, with a good string, shoots as well or better than many custom bows I've shot over the past 20+ years.
I think you have the right idea. You said you haven't developed your taste in a bow yet. That takes time, and even then your taste is liable to change as you progress. There will be another shoot at Tannehill in June, the Howard Hill. Come back and check out more bows, take your time, do your homework.
Chad