This info may be of little use but I would like to let you now that late last April, this section was still tough. It really appears to get almost no use in the winter between the Pond and NE Cannonball because all the peakbaggers out there are just wetting their pants to climb the Kinsmans or take the shorter route to NE cannonball - and have no use for this section.
I may sound upset about this but certainly am not. The day we were out this 2 mile section absolutely kicked our *****, but we loved it! Breaking trail is fun, but this section feels a little more remote and it is quite challenging and rewarding because so few people go for it.
I will bet the short section up to NE peak is broken but all the butt sliders have probably made it treacherous. The rest of the trail to Kinsman Pond is likely yours for the taking! Note the trail does not go over other 2 cannonballs only near them.