Salsa - yes, it's fine you can do what ever stroke you want. In fact I have friends that will do a whole swim (sprint length) doing breast stroke.

FYI - I won't be on TE much over the next week. I've got guests at the house and then I'll be crewing for RAO on the weekend. I'm going to PM out some directions, hopefully before this weekend coming up, but if you don't get them, have no fear, I'll get them to you before next week.