I have a 2004 MTL25 that I bought used and has always had 1 drive brake that will not release immediately, I can move the machine in reverse but that motor wont go forward until it decides to release. The other motor releases just as it should with no issues. It seems in the summer to release much quicker than in the winter I'm thinking temp related. The drive that doesn't release immediately was replaced with a new one about a year ago but this did not make any difference with regards to the brake. Has anyone had any issues like this? Outside of this the machine works great and is quite the horse.