I know from talking to a few Hawk owners, one thing they all mention was to put a bigger air cylinder on the main gear doors.

Not sure of the geometry you have, but my new Hawk appears to have a point on the gear doors to mounts the connection point. Don't know if this is different from your mounting position. I have just started looking at the up coming build and I am thinking of using servos for this very purpose. But I do have the bigger air cylinders if I can't get servos to fit.