Root you and I have made almost identical posts on this thread! Right down to having sons with low spin rate. Yes the high spin rate four seemer is sexier and will have higher swing and miss tate cause easier to adjust a bat down slightly in mid swing than up. But ground ball rate will be up and pitch counts down. We are experimenting with wrist large back on four seemer now - just four seemer. Not sure he will be able to do that for one pitch only but we will see. But while everybody else is out there looking for the hook grail - high rpm four seemer - we are sticking with the easier to manipulate low rpm two seemers and change up. I am confident in three years time there will be colleges smart enough to pick up a pitcher because of low rpm. If not... got to eat some more chicken wings and fatten up for football!