Archie is more explosive (first step) and has a quicker release. I have stressed this point, but dude is lightning fast. The vid shows Sprewell knocking down a bunch of perimeter shots .. Archie drilling them so far but his history in HS suggests his %'s will come down. Archie is only 5 of 7 from 3 so far this year, so obviously too small of a sample size to have any opinion. However, he's hitting VERY tough shots, shots that I think have no prayer, but he's hitting them time after time.
Wanting to see another 5 games, but I suspect he's going to keep it up and keep getting better. Calipari is pushing him harder and spending more time with him than anyone else on the team.