I have a plain hassy screen that came with a camera graded EX from KEH. with the lower magnification of the finder I have on right now, I think a split screen might be beneficial, so if you're annoyed with yours and want a plain one, please PM me!
Only found one,nothing special and it is a little scratched but the split portion is clear. If you don't want to trade screens due to scratches I could always use 120 film. Also looking to get 4x5 holders.Let me know.
I will try it out tonight,I only have an nc 1 prism to try it with. Mo waist level but I could try a dark cloth. I cannot find the other one unfortunately.