Hi All, I am a first timer and just bought a brand new 10ft box PUP last spring. We used it all summer and really enjoyed it! However, ever since we bought it, there has been brake squeal every time the trailer brakes are applied (I believe these are 10" brakes and drums). At first I thought it was just because they are brand new and may have to be broken it, but the noise continued all season. I adjusted the controller gain continuously; from very high to quite low with little difference. I can hear the electric hum and the brakes are engaging (at appropriate gain level), but very low squeal upon braking; especially when hot. We have packed away the trrailer for the winter, but I plan on taking it back to the dealership for brake adjustments in the spring. Just wondering if anyone has any insight into the issue? Thanks for the comments & the EXCELLENT site!