Mike, I haven't tried the Mini Hobby valve but I started using the Jetcat valves last year and they seem to work really well for proportional braking. One thing you will need though is a little larger air tank for the Jetcat, not sure about the Mini Hobby valve. I am still using the Smooth stop in my BVM F-86 because of the limited space for a larger tank, but I think that since I installed the P-60 I may be able to get one in there now. You may want to give some thought to the available space if you are using one in a smaller jet. Again, not sure how the Mini Hobby valve works. Gary