Will Delco-Remy centrifugal advance springs work in a MP distributor?

Status update and bump-up on this Mallory YH distributor thread.

I've got the centrifugal advance slots set at about halfway, with one black and one blue spring. The detonation is all gone now, running on common 91 octane gas with ethanol! I'm very happy about that.

But this engine has a fairly large cam and compression, so it seems to want a lot of advance. I got the best idle with about 30 degrees of static timing cranked in! (I backed it off to about 12 degrees for test purposes, though.)

The problem is that right now the power is very modest, and I've got to set the curb idle up so high in order to keep it running that it's not idling through the idle circuit, so the idle mixture screws don't do too much. So obviously I need to advance the static timing so I can back off on the curb idle, get the carb mixture screws working and then make some more test runs.

halifaxhops told me to adjust the advance slots, and I surely don't want to disrespect my mentor in any way, but what do the rest of you guys think? Should I try static timing first, or go ahead and give it more static and more centrifugal right away? Please let me know what you think.