I'm playing with T.Fight 320 (16x20) grip size 4 1/2 with some lead on 12 o'clock (SW 325). Sweetspot is very small, but after lowering tension the racket plays much better now.
Actually I've strung my racket with MSV Co Focus 1,23 red as main and Babolat Tonic+ as cross string (tension 23kg both.)
As the racket reach the weight limit for me, at the moment I'm trying to play with the T.Fight 295 with TW leather grip and leadtape with same strings and tension. Play's very nice with a weight of 330g by SW 320.