Small base dies resize to SAAMI minimum size. Unless you're running an AR with a tight, match-grade chamber, you don't need them.
Also, as an alternative to using a lee crimp die, you can get a Redding sizing die with a bushing for adjustable neck tension. Get a bushing that's a little tighter than normal (I could check, but I think it's a .242"?), saves you that extra step.