shouldn't it be 6.61b already? i suggest following underminer's recommendation in his rankings thread .

most games at my cwr is .61b alrdy, which means that most teams have alrdy been practicing .61b for quite some time. besides, when most other places have been using the latest version, sticking to the old one doesn't seem like the best option. i know u might find it "too soon" but that's the beauty of it, that's what make a tournament more interesting because using new version make games more interesting and lessen the predictability of picks/outcome of games.