Can't find much info on the RX-28 except for one thread. The RX-32 seems to be highly regarded. Anyone who has hit both can comment on the difference between these 2 racquets? Or alternatively, how does the RX-28 compare to an R-22? Or how would it compare to a Max 200G, PS 6.0 85 or a Head Prestige Classic 600? Thanks all.