wetsuit fit questions?

[Sendr98]

ok, so for some stupid reason the only shop near me seems to have people that know nothing about wetsuit fit (yes, I was as confused about that as you probably are right now lol) I'm still going to be buying(my first wetsuit) from there tho because I get a hefty discount.

So my questions are: how tight fitting should it be in your arm pits and crotch area. Like should the armpit joint be as tight as the elbow joint? Every suit I tried on if I put my arms straight out to the side there was a bit of space in the I guess you can call it cup area ?_? (kinda like if you put your arm straight out to the side and lightly put your flat hand in your armpit, only the edges of your hand touch) Same with the crotch area, it's snug but when I'm moving around I can feel trapped air in the region(mostly the rear). I assume that's just because the suit doesn't ride up my butt crack but how tight should it be in that area? It doesn't feel like I can pull it any higher. It just seems like a bit much to expect a 4/3 suit to fit like a pair of mountain bike shorts(those tight spandex looking shorts)

also, one last spot, on both knees on the spot just to the outside of each knee cap, where there's that little dip/dish (whatever you want to call it) the suits don't make contact with my leg leaving that tiny little bubble. Is that normal?

other than those 3 spots everwhere else seems to fit perfectly in every one of them I tried on. Since I tried on 3 different suits I'm kinda hoping all suits fit like this lol I've got an "unusual" body shape, I wear a medium tall, I'm 6'0" and about 166lbs I've got long arms and legs with super skinny forearms/wrists and skinny ankles but other than that I'm pretty built to the point where I look like a completly different person once I take off my shirt

any help/advice would be greatly appreciated, thanks ^^

[Sillysausage]

supposed to fit tightly, the armpit n crotch bit shouldn't be too bad, but not sure about the knee area? if its that small it shouldn't be too bad, but i'm no expert so not sure

[Sendr98]

I kinda don't even see how the knee could fit any tighter actually. It's becayse the little bubble is in the spot just off to the side of the knee cap. The cap basically lifts it away from that section creating for lack of a better term, a "valley" lol

[Driftingalong]

Seems normal to me.