Just noticed our sponsor J & C Classic has some remaindered 14X17 400 ASA film. Use before Jan 2005. $39.99 for 25 sheets. I bought 3 to cut and use in the 717. Also useable in the 11X14 I would think. That's about 80 cents a picture for 7X17 which is pretty good. I'm a sucker for a bargain. One of these days I'll tip over and my kids will open up my film deep freeze and say, "What was our dad thinking about??"
I don't yet have a rotary cutter large enough for this. Mine is 12" and yes that's what I use for the 8X10 and smaller. I'll likely spend whatever $ saved on a larger Rota Trim.