CR,
Some of the Sterling kits had reasonable wood. I think that there was always the chance that one may have gotten a light kit. However, I'll bet if you built the Ruffy or Ringmaster from an average RSM kit, you'd have models that are lighter and whose parts fit better than those built from an average Sterling kit.
My previous statement did not apply to these two planes specifically, but to the fact that the value of some of the older kits seems to be getting so high that it doesn't make sense to build them. This is especially true of kits with less than decent wood. Carefully replicating them and building them with better wood, thereby saving the kit for a desirous collector, is the only reason to buy one of the older Sterling (SIG, Berkeley, Midwest, Berkeley, Top Flite, Veco, etc.) kit today.
By the way, I don't want to talk about your Ruffy! You were
supposed to fly it here rather than taking it to Sparks before its maiden flight. I was highly disappointed that I didn't get to see it fly, since I watched it being built and gathering dust since it was built!
:'(

Which one of your Ringmasters is the one pictured, Scuz, Mutt, or another? That black trim certainly does change the look of the plan form, at least in the picture you posted here.