OK:
Warmed up as suggested, level is on the H line of the dip stick.
No oil leaking out of the little catch can which is vented to the crank case (yes I know some people change that, but it works fine for me). Rode home safely.
So far so good.
Lubed all the appropriate spots. Greased the nipples. Checked to make sure nuts hadn't fallen off. Thumped around for a while, and then remembered I needed to work on the bike
This morning gave the bike similar treatment (whats goose for the spouse, or however that goes....) and all looks good.
Still going to switch back to 20-50 for safety sake.
Cheers!
Must ride to work, or work to ride, not sure which........