Nope, I am using the older version with the smaller pipe. The new ones look like an improvement, perhaps especially for those that want to try organics in their reservoir. So far, mine have worked without a hitch on 8 or so grows, so I am not in the market at the moment.
Proper operation does not actually dry the tray, just reduces the water level until air can enter the cover by bubbling beneath the cover edge. This will happen suddenly once the water level in the tray gets close enough to the cover edge, as I recall, no sooner than when water level in the tray gets within a couple millimeters or so from the tray floor. If the air valve is leaking, the water level will cycle between full and something like half full, and will never get close to the bottom of the tray.
Have fun with those new valves.