I’m on my 2nd Monarch Debonair RT3. The 1st one failed after about 3 months and was eventually replaced. A year later (just this weekend), I noticed that although the pressure was fine, the replacement shock had lost about half its travel. I removed the shock, and then the debonair sleeve. This came off with an enormous bang, but not any fingers or hands thankfully, and the travel returned to normal.
It seems to be working fine now, but I’m thinking that two very similar issues, on two separate shocks is a big warning sign. If I could afford it, I’d be shopping around for a replacement. 🙁