Had my Blackburn TP3 for years with no problems, the one in the workshop died in a matter of months.Using a Leyzine Steel Floor Drive in my bay,had to replace the connector with one from a scrap Joe Blow Sport(which lasted a few years,replaced with the same for the other bay)after very few uses as it wouldn’t fit most schraeder valve, also doesn’t put in much air per stroke so not much cop for tubeless.We also have a Joe Blow Max which we keep for tubeless inflations as it puts in hell of a lot of air per stroke, but it’s high ratio makes it very difficult to reach high pressures(the owners 10 yr old son can put his entire weight on it and it won’t move on a tyre with 35psi), may be the one to go for.