Sounds like a fun trip but I can't do the mid-day, mid-week ones.
Haven't been up to Santiago Peak in a while and would love to go enjoy the view once more. Never have traveled north of the peak on North Main Divide road, so that would be fun/interesting.
I actually did the full drive over South Main Divide last night... started out in Murrieta and took Wildomar Truck Trail up to S. Main Divide. From there I took the Divide road north to Elsinore Peak and watched the USMC blow stuff up on the base for awhile, then took the Divide road south all the back to Tenaja Road. Started around 7:00 pm, was done by 10:30 pm. But N. Main Divide is so much more fun.