Installed the 48 pilot jets today (got 'em really quickly from BellaCorse, thanks Mike!).
Initial results look great. As I prefer to do performance testing during daylight, fine tuning will need to wait.
High RPM light-throttle cruise improved substantially.
The initial pilot screw setting of approx. 1-1/2 turns out was a guess on my part; warm motor idle was in the low 12's AFR.
I reset the pilot screws to 1-1/4 out & will test 'em some other time.
The float heights are approx. 18.5mm, which has the fuel level about gasket height.
Now it should be a matter of fine-tuning the pilot screws and baffles...
