I stayed at Guyot shelter last weekend and the spring was running as strong as I have ever seen it. It's the sweetest water in the Whites at the best campsite. I was there last week and I'm already envious of you.
I forgot to mention that, on Mem. Day weekend, there was copious snow (2-3 feet) from the summit of Bond to the Twinway and in either direction from South Twin almost to Zealand Hut. It was hard packed and hike-able. I mention it just to highlight the fact that the plus-4000 springs will still be running for awhile.