Following optimistic reports that The Brothers can be scrambled in one day, we succeeded in our attempt, but it accounted for one looong day. This always seems to happen whenever our guest flies into town with limited time, making for time compression. Outside of some inaccurate reports, the hints were there that this might be a one-day ""death march"". The next trip will have us camping at either Lena Lake or 6 mile camp up the East Fork, which was nice and quiet. This would probably be especially wise for those not having done the route before.
We were in good shape for this scramble, but it turned out to be like giving birth to an elephant: it comes with alot of kicking and screaming, and takes one hellava long time. We car camped at the nice clean and quiet Lena Lakes Campground across from trailhead, and breakfasted in dark in preparation for 6:30am departure. We packed light(about 20lbs.each, 11/2 liters of water), cached about 1/3 of it, including parkas and raingear at gully(4100'), and it still took til early afternoon to summit. For all its positive qualities, the 75 Scrambles/Goldman book miscalculates the mileage by 2.5-3.0 miles round trip(book shows 14 mile rd trip). Note on Green Trails and USGS maps, the trail to ""Six mile Camp"" amounts to 6.2 miles. Mileage to the gully turn is a rigorous 1.3 miles, and the 2,700' ascent covers about 1.0 miles, for a rd trip closer to 17 miles. This additional mileage turned out to be an important factor in having us dig out our headlamps before the moon came out.
As for trip info, #810 is a beautiful maintained trail, and trail #821 to 6 mile camp while less maintained, is easy to follow: some recent brush cutbacks and gravel work having been done too. It took us only 2hrs, 40 minutes to go the 6.2 miles. The climbers trail to the gully turn is rugged and steep in woody conditions, but well tagged. Last obvious water to find is above gully about 150 yards. The route reports were pretty accurate, and cairns in places help a little. There are some obvious boot paths in places, but some take off for nowhere. Our advice is once within 1/4 mile of summit, start traversing the scree/talus field to right side. The actual summit is round, and on right of the ""tooth"" shaped rock.
While clouds blocked some of the views, they were super when briefly opened up.
Also, what consumes the most time are the scree fields, gullies with some class 4 moves, loose rock, and rapid elevation gain. Safe down climbing can take time as well, however, the rock is some of best we've experienced.