The 1.5 should fly a Jr. Flite Streak nicely, and the 2.5 should fly a full-sized FS well. I dunno about the 2.0, but maybe the Peacemaker would be good? All examples should be reasonably light, of course.
The Brodak kit "Lightning Streak" that kinda resembles a FS should be lighter than their clones of the TF kits, and fly just as well or better. I've only had two Jr. FS from TF kits. One flew very well, but the second was awful, and I never really figured out why.
Steve