The Yamaha will respond well to all adjustments and the only time I notice this problem is when the track is a little slick. A few little things add up and may need to be changed from track to track. I am far more happy with the rear suspension at 100mm sag. Moving the forks only slightly in the clamps seems to get the bike turning the way I want for track conditions. I usually end up just at the line on the forks or 2mm above or below the line. Also do not forget about the fork rebound to keep the front down.
One last thing, I do run a DRD radiator lowering kit which does help and if you are on medium to hard dirt the 745 Dunlop is hard to beat. I have never liked 756 front tires, they only seem to work well when new.
But you're 49.......and I'm just kidding.