I am 5'9 and 185 so juan i think it would work well for you. they have a smaller hip belt you can buy it it doesnt snug right
6'3 may be a bit tall for this pack kinda depeds on your torso i guess... if your all legs your prob fine. but i have heard it doesnt fit well on the taller guys.
Yes the pack squeaks like crazy. I taped it up with athletic tape ad it went away. however all the hiking i did wore through the tape and started squeaking by the end of the hunt. I am thinking of wrapping it again but tripling it up where the straps hold the frame on( the area it rubbed off)or trying spray on stuff.
Other than that great pack love it. wish my spotter would fit in one of the zip pouches but i have to just put it in a side sleeve which is ok but would be nice to have it protected a bit better. havet had probs with it yet so i guess its not a big deal.
oh and one thing i love about it is.. when i pull my spotter out and glass, and decide to move down the ridge or what ever i can keep it on the tripod and strap it down on the packwith the compression straps ad it works great!
so far this pack has been worht the money! next test is how long it lasts!