I had both quartz & standard & the quartz seemed sharper & had more contrast - minimally
the standard one was fine, I used it for ages, I don't think the difference is worth getting excited about unless you're using top shelf gear in perfect conditions
Nicholas
I've got a 3-4 year old Orion 2"/1.25" , CR type you can have for $50+post. Optically its fine, no scratches, a little dust, but the black anodizing on the 2" eyepiece holder has "disappeared" and its now silver(??)
PM if interested.
PJH