Finally got my mower straightened out. It was leaving a trail of uncut grass that would sit on top of the grass but was fine when using the bag. I had sharpened the blade several times on different angles and also had sharpened the whole blade. I failed to notice the two tabs at the very end were missing which causes an uplift and then the blade cuts it a second time. Replaced the blade and cuts like a dream again. I'm going to pull the top off and check the timing key. It kicked back at me today. Simple fix really when you have the right tools which I have.
The hot humid weather will be back for the weekend.