San Gorgonio is higher than San Jacinto, just sayin'.
Yet the PCT doesn't go anywhere near climbing it, but it is a pretty looking peak. Definitely much more snow visible on SG than on SJ.
One thing that was downright weird.... We got into Big Bear on a Monday or Tuesday, 4/9 or 10, can't exactly remember, the ski runs there were essentially bare, so the town was really Big Bare, anyway, the ski area had apparently just closed the previous weekend. Not sure what people were skiing on! Maybe there were some higher runs that we couldn't see from town. I think this has been a pretty low snow year for SOCAL.
Yeah, looking at Caltopo, it's not too bad, about 10.5 miles (each way) and 3800 feet of vertical from closest point on PCT. For peak baggers, this would be a worthy one-day side trip. If I had known, I might have done this side trip. Not sure what you mean about permits though... A PCT hiker, for example, could simply camp at the junction to the trail system that heads up SG, take a light pack and climb the peak and return, camp in the same place the next night and move on. I guess you might mean a PCT hiker can't camp away from the PCT and nearer to the peak without a separate permit?
The San Gorgonio Wilderness is zealously guarded. The PCT was deliberately routed around the wilderness. Starting in the 1940s there was a big fight to protect San Gorgonio from being turned into a ski area. Of all the times I've hiked and backpacked up there only a few times have I not been checked for a permit. I don't think a thruhike permit would work there.
It's beautiful country, the best in Southern California.
You need a permit to dayhike in the San Gorgonio Wilderness. They are pretty easy to get, fax, email or mail. I get mine in person, never had a problem.
Mt San Jacinto State Wilderness. Permits.
https://www.pstramway.com/wilderness-permits/
Wayne