well i dont practice shooting that much but like 2 weeks ago i shot 300 jumpshots for practice and when i jump as high as i could they kept going in( only 21-22 inch vert tho) so i kept doing it and i was shooting like 8 jumpshots of the dribble in front 3 pt line in a row It was like hit 8,miss 1, hit 6,miss 1 ,hit 7. So ive stuck to it and its been working find. I guess you have to be comfortable doing it as i am jumping so high off the ground.

My vert is low so i guess it doesnt mess it up that much. Im thinking that if your vert is high and your jumping like 35 inches then it could mess you up. You could try practicing if you so desire not getting blocked because disregarding what some above posters say fi you look at kobe and ben gordon they jump high 30s when they are jumping shooting and they are good shooters.