Too bad, There was balsa, contest balsa, and then "Riley balsa". If you were nice and asked he would send you the most unbelievable stuff. I horded all the blocks for tips and fuse top blocks I could get from him. And if you wanted C grain, he'd sell it to you. And always a little hand-written prayer on the box.
When I build nowadays it's like "this wood is really nice, but it ain't like the stuff Riley would send." He knew controline.
Chuck