Inspired by your info and based on that, that I received some TK293 grommets today, I went to work. Unfortunately TK293 weights almost the same as TK238, which is 28 g. and 29 g. respectively. SInce stock racket of 344 g. is too heavy for me especially on serves and on a 2hbh, I trimmed original TK238 by 1/4, and hour and some blood caused by the awl later, I had a racket, which should be about 5 g. lighter when strung! Does not look very aesthetic but I didn't mind some grommet trimming training (Youtek grommets are in line for trimming for 5 Elite pro's and 1 Elektra pro). If that won't help, I will have to settle for MG Radical MP grommets.
Been playing my best tennis with Yonex vcore 97 (336 g. strung) before starting to experiment with old Head stuff, which lead to PT 2.0. After 10-12 hours or so with PT 2.0, no way I would have the guts to take it to the tournament. Not enough racket head speed so far, although it's a very nice frame, which I don't want to give up. I would gladly take my PC600 at 4 pt HL and 348 g. to the tournament. It feels much more manoeuvrable than this beast. Jury still on.