4-8 depending… Although I end up using a regular piece of card stock that is cut to the size I need. Once everything from color and impression to placement is where I want it to be, I’ll put in the real thing. Still, like Kristy said: too many! 😉
A lot it feels like. Though to be honest, I lose more mid run than at the beginning. It may take me about 10 prints per color to get it all ready (sometimes less, as few as 2-3), but inevitably midway through the inking gets off (a light or dark spot forms and packing needs adjusting or more ink is needed) or I misfeed every once and while (not too often, but hairline lineups can be a pain). I keep my inking really light so I really do tend to lose the 10 percent in the end simply because I lose one or two right before and right after I add ink (the former because it’s too light thus prompting me to add ink, and the latter because it’s too dark) I always remove the chase before adding inking because I hate getting fill in on my plates or heavy spots. Always print more than you think you need for a commercial job, you’ll sort through them and find plenty less than perfect ones to toss out. I’m also very picky about what constitutes an acceptable print.