I'm looking for some options other than a UP-2 / UP-3 valve for my Hunter, just coz I find the UP valve to be a little finicky in setup. Anyone have any suggestions ?

Jetcat's web page is sadly lacking in details about some products - including the gear door sequencer. Can anyone explain to me how it works - is it simply a servo sequencer, or does it operate pneumatics, or wot ?

Thanks,
Gordon