I have a 2016 Cub Cadet Challenger 700 that has ~40-50 miles on it,, and similar hours. It had the Brake recall completed in summer of 2017 and in summer of 2018 after sitting for a month of non use the brake pedal pressure became soft and would not stop quickly as normal. I took it to the dealer and they "fixed" it and it worked fine for the past year but again this past weekend I took it out after not using it for 5 weeks and the pedal is soft again and takes forever to stop. I plan to call me dealer again to see if they will fix again but I am wondering if anyone else has seen this and if anyone knows what it could be. No visible leaks and machine is not worked hard. I use it to drive around my property.