I like the frame supports on your lift. Did you make them yourself or did they come with the lift? I use my Handylift and wooden roll up stand for long term projects, but these portable lifts make short "driveway" repairs and maintenance easier than crawling on the ground.
Those frame supports address my biggest problem. The pipes interfere with lift, and placing wood blocks between the frame and lift arms isn't very secure.
You have me thinking about taking a length of 4X4 and drilling a 1" hole down the center and then splitting it on the table saw. Screw in a couple studs in each length and drill several holes in the lift arms to take the studs and voila! A stable lift with frame supports! Not as elaborate or adjustable as yours, but workable!
Thanks for the idea!