i've been using a Head i.prestige MP for the past 2 years. it's been good, but recently, i'm starting to feel that it's a bit heavy. so i demoed the LM radical MP for a session and found that i liked it. and i went ahead to order one. now i'm having second thoughts and thought that i should have demoed more modes before making the purchase decision. plus, i only just found out about this forum. such a wealth of information...wished i had known about it much earlier. i'm primarily a baseline player, i hit the ball pretty hard, single backhand. i'd say i'm about a 3.5-4.0 level player. any advise on which rackets i should have, and should still demo? recently, when i play with my i.prestige, i feel that my wrist hurts a little and feels weak too. and that was why i was looking for a lighter racket, but perhaps my logic is wrong. is it?