Joe Most films can be pushed a stop, some even more. My experience at the lab is that 1 stop is OK, not too much increase in grain and not a real shift in color. I always enjoy seeing work that other photographers do and get to see the effects of pushing at various amounts. Slides have a rich color and when scanned, look great. As for the 36 exp. rolls, you might be able to order 24 exp. rolls but the shipping will negate the savings. If you can find some reload-able cassettes, then clip the exposed section of the film and add a few frames AFTER your exposures so the lab can process the film w/o punching holes in "the best frame". You'll probably be charged for a 24 exp roll, but you'll have more to shoot. If it's just a few frames, snip the piece, put it in a light tight film can (the all black plastic ones) tape the top and tell the "custom" lab to run ALL of the clip. We charge $3.50 for running a snip, might be more in SLC. BTW do this in a dark room or closet, someplace w/o any light leaks. Then try a digital SLR ..................... aloha Rob