i've been playing with a Yonex Muscle Power Tour-1 for 4 years. i decided to pick up a few extra sticks, but it's VERY difficult to find that racket with 4 3/8 grip size in mid-plus size. i can only find that racket with a 4 3/8 grip but in the mid size only. should i make the switch? i think i'll be able to handle the extra heft of a mid but i want feedback. thanks.