Hey TW, I used to order some TK52 grommets for Head Prestige mids through your website frequently. Now I noticed that they're not there anymore. Is Head discontinuing the TK52s? I know that the TK237 will fit on the Prestige mids but stringing-wise there are different main/cross tie-offs. I preferred the TK52s just to stay consistent. Are the Youtek IG (transparent) grommets similar to the TK237s? Thanks TW!