I agree with the other folks here. It's not that you are taking too much stuff, but a lot of your stuff is a bit on the heavy side...and as you can see, it does add up!

One thing I would point out--even if Crabtree Cabin is open, there are some steam crossings on that trail that may get your attention. This areas has very little soil...so when the melt comes, it comes all at once. If you are planning to go in through Grouse Lake you may be OK...but plan on some exciting times at the streams. You do have to cross Piute, I think, before you get to Grouse Lake. Ground Hog meadow may be pretty swampy...

And there is a crossing (or three?) between Louse Canyon and Woods Lake that might be high...

You can see how we did this hike on our website...but we did it much later in the year...and explored down through Pingree and Big Lake...Amazing area!