The only liners I had problems with were the heavy drawers, ( 1/2 drive, air tools etc.) which would tend to slide and bunch up. I went to Home Depot and bought 6 feet of black rubber stair tread and cut it to fit the drawers. Never a problem since.
I bought the Snap-On 3/4 drive 19" and 36" handles with the breaker bar head and 3/4 to 1/2 drive adapter. At least I"ve pretty much got everything covered and have a setup that shouldn"t flex or break.
I bought one back in 1989 when they were still made in Lancaster, Pa. They work great on older cars where the arms mount on top, and not under the hood.