Geez, there are water sources all over the place. After the first two miles, you start up alongside a stream. Going from Paradise to Woods Crossing, there is water that is way off the trail to the south, so that is one place that is uphill and moderately dry. But, if you get desperate, you can head over to the stream. From Woods Crossing to Dollar Lake there is water from time to time, but there are a few spots in the middle that are far enough from the stream that you won't bother. Once you get past Rae Lakes and are started up toward Glen Pass, you pass the last ponds halfway up. Then Glen Pass is completely dry until you get to the south side where there is a nice turquoise pond. For a few miles down to Vidette Meadow, it is dry. But then from Vidette Meadow and down the Bubbs Creek Trail, there is water all over.
This summer is looking like it may be very dry, so the mosquitos may go away, but you can't count on it.
The single good thing about Glen Pass is that there is a great view, especially in the direction of Mount Brewer.