I am putting together a SM small Hawk. I know that all the doors stay open, but I want to close the mains after the gear is out. The doors are close to the ground and on those not so perfect landings they just might get ripped off. I know I could get a UP2 and a UP4. I could also go with electronic valves and a sequencer or even a EV5UPRO but I think I would still need to get another valve for the mains go close back up. But what other options do I have?

Thanks

yes you are corect the main doors will get ripped off
..if you dont mind you could use only one valve
and all the doors will close after gear is down
(you need to cut a small door for the frond leg tho)
like one of my customers did here:

post 191 http://www.rcuniverse.com/forum/m_73..._8/key_/tm.htm