NCAA-W instructed us a few years back to whistle EVERY time you bring in subs. I think its a good idea because it lets your partners know that you have something going on. We all know there are times we or our partners get in a hurry and rush a throwin. A quick whistle gets everyones attention and can save you some embarassment.
As for two hand mechanics...The last time I used 1 hand was at the State Tournament, other than that, you'll always see me with two. For me, it has nothing to do with disrespecting the game, it has to do with me working other types of games which require it. I don't want to change my normal rhythms and habits on the court. It's hard enough with rule differences, two hand reporting just seems very trivial to me.
Just my $.02 worth!
