[Closed] Carry Freedom Y trailer for mountain bike touring

Just returned from the second of two three day mountain bike touring expeditions (supervising Silver DofE exped) in and around the Southern Cairngorms and Grampians. the group had a mix of trailers and panniers with the expected various pros and cons. the route was varied as would be expected for 100km and included some steeper and rock descents: landrover track down to Allt na G. from Lochngar, Glen Tanar to Glen Esk via Mount Keen shoulder, the Fungle to name a few. The big issue we had was with the Carry freedom Y trailer. It is not suitable for this sort of touring/expedition. It's great on the flat and uphill, and generally copes well with incised ditches or trails if you just ignore what is happening behind you and let it do its thing. It is also very durable. BUT the trailer on downhills is a total liability. On gentler declines with some moderate speed a fist-sized rock or bump, or the side or the track will send one side into the air and the trailer will invert, twisting over on the elastomer connection to the bike. This is inconvenient but the one large waterproof holdall ws well lashed on and never came off; but you have to stop to right the trailer which is a pain. On traversing singletrack the trailer inverts frequently as it gets dragged off the track by gravity. On steeper declines it is actually dangerous as it will bounce forward and land on the bike. On my bike the arm of the trailer lands right across the rear shock and caused several falls off the bike. This happens when you are going slowly down rock or more technical terrain. My opinion is that there is no "fix" for this and that these trailers should not be used on anything other than low gradient wide tracks or surfaced roads. I would not recoomend them to anyone going touring in terrain described above and would not let any young people involved in such trips use these trailers.