It was the cap - bad solder joint. Once fixed, it came up in 4 modes, well 3 modes plus moon. Think that's the default?
On to the next problem - high mode flickers on for a moment than switch's right a way to the 1st mode. If a use a higher resistance cell, the problem goes away. I noticed this behavior when trying to get a tailcap amp reading, even on the weaker cell. Don't think I ever saw a problem like this - not sure, maybe bad ground. Something to do with high amps, not just FET usage... Dunno.
Update:
Ok, - got a Fix!! Added a 2nd 10 uF cap sitting on top of the normal one, and wholla! Problem goes away!! Details in Post #580 here.
I've used this type of fix before, on a 22 mm driver.