As I recall, they won't run as deep, but if the fish aren't super deep anyway, they ought to work fine. You will have different line/depth ratio than the guys with the 300's (but I'm sure you alread knew that). Just go to the website and print the chart that gives the amount of line to let out for the desired depth. That way, when everyone tells you they are catching them at 8 feet deep (or wherever), you can be absolutely certain that yours are also running at 8 feet (but still not catching any).
Its been a year, so I'll defer to some of the more professionaly crankers, like Jwhite, rip-a-lip, speckhunter, release_to_the_grease, etc, but I wouldn't expect a major problem so long as they will get to the right depth.