Day 46 after detail with clay bar to remove sap, Duragloss Pre-Bonding Agent 601, then Duragloss 501.
The car was washed every 15 to 21 days. Up to 15 days, the sap dots come right off. I applied Aquawax on day 15.
Yesterday, after a 21 day "no wash" gap, I cleaned a sample area with Duragloss 521 Marine detailer -- all sap dots came right off, although some needed a little rubbing with a microfiber. The old Megs Quick Detailer removed the dirt but left many of the sap dots on a similar surface.
I washed the whole car with Duragloss 901 Car Wash Concentrate (at 1 oz per gallon) using a foam gun and a wool wash mit. Nearly all the sap came off except on a few flat areas on the heavily exposed side. The original 501 plus Aquawax was still beading, but I reapplied the 501 to the whole car. The 501 took off all but a few of the most subborn sap dots (a few areas with small pin-point dots of sap) -- and the car looks great.
If I get to it today, I'm going to spot clay bar the few tough sappy spots. I'll then reapply the 501 on those areas.
PS: Many thanks to AL-53 for suggestions on using Duragloss products. I'm tempted to try the TrackClaw sealant on the worst sap areas -- maybe even on a side-by-side basis with just 501.