Early March/Late Feb is definitely the best part of the season with all of the terrain open. The park is set up on Dream Maker and is super fun. It starts off with a rail garden into a decent sized jump then more rail feautures then a 4/5 jump line ending off with 1 or 2 jib features and spilling you into the 22 ft superpipe. The mountain is also super fun with awesome terrain and pretty sweet glades. Also the Stash park is super fun and if you cut through ropes you can ski more than half of the Stash park and the whole Dream Maker park. Hope that helps! PM me if you have any questions about Killington!
Btw almost everyone at Killington are super chill and always down to shred with new people!