Shooting, yes.
Lots of good options there.
Proposal #1. Slapshot on ice vs. elevated slap shot.
You could do a comparison between slap shot types.
On-ice shot: Pros: Minimal boot interference, better/quicker rebound control for shooting team, most difficult goalie "adjustment-save". Cons: Slower (kinetic friction) + stick-interference + less ability for re-direction.
[Gretzky was the absolute KING at the on-ice slapper... and he took the majority of his shots from close enough where goalie-reaction-time was insufficient to stop a perfectly placed corner-location-slapshot.]
vs.
Elevated shot: Pros: Faster (only air-drag/minimal) + less stick-interference-on-route. Cons: More area interference (legs) & easier goalie puck-termination/save [glove saves, pad deadening of puck].
From playing hockey, I've found that when I see slapshot go directly in (untouched)... it's most comonly on ice.
But, an "elevated puck" is more likely to make it to the net & therefore a "higher rebound opportunity". An elevated puck also has greater redirection/tip ability.
My shot isn't a laser-beam, so I typically try to get it off-the-ice simply so it "gets through".
[This speaking as a defensemen shooting from the blueline looking at traffic between me & goalie.]
I've always advocated that a perfect slap shot is about 6"-12" off the ice.
High enough to avoid stick blades.
Low enough to avoid the knees of defenders and the glove of the goalie.
But I have played with guys with absolute cannons who've scored a lot with on-ice shots.
My recommendation for a study.