I completed this hike in the first week of June, starting at the Appalachian/Long Trailhead located on Hwy 4 rather than at the Shelburne Pass Trailhead. Although the hike ascent is a bit longer than the Shelburne trail, I believe it is much easier, gentle swaybacks with a beautiful path along the Long trail through mixed forest. Starting early will give you a great head start to the day arriving at PICO peak around 10:30 -11:00 at a steady 30 min/mile pace. Once you arrive at Jungle Junction simply follow the old AT trail to the service road and take the road up until you see blue flash for the 0.7 mile climb to the summit. The views from the top are a nice 360 vantage-- although the towers and ski equipment take away from the overall experience. Be careful of the porcupines-- they are having a problem with overpopulation on the summit. Make sure you leash your dogs otherwise your hiking trip might turn into a nightmare if your pooch decides to tangle with one. have fun!