That might be another route to take. The only problem is I have about 4 cats (out of 8) that consider themselves quite the "biker" cat. Of course with the Wing I may be able to have only two to a cycle. I bring that up as the motion sensor may be more trouble than it's worth, though they might be adjustable...but if my cats get any fatter even that may not help.
Dennis
18 days to go (technically 19, but I do not count the last day [Sunday, March 18th] as I'm in the air most of the day...3 flights, about 19 hours of flying and roughly 8 or 9 time zones)...and I'll be home around 5:30 pm.