On Wednesday, April 5, 2017 at 4:47:50 PM UTC-4, Ivan Vegvary wrote:
THANK YOU, THANK YOU Group.
Purchased new 6-1/2" blade (Irwin).
Solved all my problems. Cut jig and subsequently made 9 full length cuts in 1-1/8" plywood for my stair treads (10-1/8" wide)
What a difference a sharp blade makes!

Perhaps you should post your solution in the original thread. You know, sort of close it out for
anyone who comes across that thread later on.