Not that I try to be exactly like federer, but I'm wondering what I'd feel if i strung my strings at around 50-52. I know fed strings in the 40's, but I don't think I wanna go there. So just wondering, what significant changes will I feel at 50 pounds? Will there be a longer ball dwell time? I especially want to hear from people who string all their rackets low, and play like this on the regular. Thanks.