looping cloth

Hi there,
we've recently invested in C4D are very impressed with it's intuitive workflow. We have a large project coming up producing several hundred flag animations which have to loop seamlessly. We have tried Zaxwerks 3D Flag but we need a much higher degree of realism. We've just downloaded a demo version of Mocca and have been evaluating the cloth tag feature. This gives excellent results but we are unsure how (or if it is indeed possible) to seemlessly loop cloth animations. We don't want to go down the road of spiltting the animation and adding a subtle dissolve; we really need the loop to be perfect. If anyone can give me any pointers it would be greatly appreciated. We don't do charater animation so purchasing Mocca would only be for the cloth feature, should it be possible to loop.
Many thanks,
Phil