You should take a look here:
(78242.1), it has all the different training types and the time it takes to train the skills. You could also try the Training Simulator by Rhyminsimon
(229484.1). For JS it seems like the Wingmen variant trains most:
Jump Shot
Guards:
Trains JS @ 2-3 weeks
Trains JR @ 7-8 weeks
Trains HN @ 7-8 weeks
Trains DV @ 7-8 weeks
Forwards:
Trains JS @ 2-3 weeks
Trains JR @ 7-8 weeks
Trains IS @ 7-8 weeks
Wingmen:
Trains JS @ 2-3 weeks
Trains JR @ 7-8 weeks
Trains DV @ 7-8 weeks
Trains HN @ 7-8 weeks
Trians IS @ 7-8 weeks
Last edited by Jeründerbar at 2/14/2013 4:23:41 AM