I've got a 2000 dual console tr 21 triton with a 250 yamaha SHO.. would a ventless 27 t1 prop be a good choice..?? I've got a vented 25m on their now, but I could go over my rpms very easily if I'm not watching my tach..lol. anyway just curious about the 27 t1 prop being ventless would hurt my hole shot..thanks.