I've got an EC-TL with a microprism focusing spot, and I find I'd prefer a split-image focusing aid. I believe that such a screen is available, though I'm having a hard time confirming that to be true. If anyone can (A) confirm that such a thing is available, I'd appreciate it, or (B) actually have one to sell. EC-TL with the 15 LEDs, not the EC-TL II with many fewer LEDs.
I have seen plenty of matte screens for Bronica EC and I have Screen types A to D for EC and/or EC-TL. Apparently, there's a screen type E that was made for the EC-TL II. It supposedly has a diagonal split.
You could possibly also find a third party screen that would fit into an EC frame.