I can't help, but I'm on the market for a flatbed printer and I would like to have feedback on those two options also.
We bought a new JFX200 a year ago with white, clear, and primer. We have used the clear to achieve a high gloss effect and has come in handy since we've had a number of requests for glossy. The primer has also worked well for us in situations where adhesion was not the best. Very helpful when printing on large pieces of acrylic that will have mounting hardware attached.
Sorry I didn't get back to you sooner. We use LUS-150 inks and we print on acrylic, aluminum, Dibond, wood and glass. No problems with ink cracking. We use 20% primer and 75% white as a backing color for all transparent media.What ink are you running? I have the 100 ink CMYK CL PR W. Have you printed on acrylic or pre coat white aluminum exterior signs? If so, any problems with the ink cracking?
Sorry I didn't get back to you sooner. We use LUS-150 inks and we print on acrylic, aluminum, Dibond, wood and glass. No problems with ink cracking. We use 20% primer and 75% white as a backing color for all transparent media.