It's definitely a good spread! And I think it is wise to claim only the ones you can be reasonably certain of finishing -- that way, if circumstances change and you're able to pick up more, great, but if not, you don't have an overwhelming number to wrangle with.
I only claimed four this time, partially because I only completed four last time. I think people in general seem to be cutting down so they run less of a risk of burning out and defaulting on everything?