I am talking with the guys at the other pool (PMP Mining...MAZA solo) One of the operators thinks it may be because of ASIC boost enabled in the S19 and MAZA isn't compatible with asic boost, rather than the miner being a problem.
They have noticed other 100+TH miners that didn't hit blocks either and they thought it was a dual algorithm thing, but now are thinking asic boost issues ... got me

? So it can I spin up a local CKpool on the test net to check my miner or is there a ckpool instance already up somewhere for test-net testing?
I just don't want to run for years on solo ckpool and then realize the miner doesn't report found blocks...
running solo on bitcoin is bad enough without that complication