I sure do appreciate the advise. I think i needed reassurance this thing worked.

Here's a pic. I'm still tweaking of course, but there's a better consistency with prints. I removed the nozzle and cleaned it out. I think what happened is when i switched from the black PLA to the red ABS i got gunk in the nozzle.
I printed the calibration square a lot. That's a great short way to test and change. Thanks!