So here you are at level 70 and you'll have to Eve isk ask yourself. That's what eve raiding is now. When it was forty-man, on occasion we started with less hoping to get to thirty-eight at least before any boss encounters. You won't be trying to down bosses with less than the 10-man required, until your gear has progresses above it, by which time, you're already in the next Tier of content.