I've had these tapes since Ike hit us, so that was just over 3 years ago, if that helps you compare their age with your tapes. I gave the last of my originals (5-6 years old now) away right after Ike to one of my neighbors and ordered this batch.
I don't remember the previous set having obvious hook slipping problems so can't say if these three are better or worse than the previous ones. There are three shallow grooves on the back of the hook I presume to reduce slippage. If yours don't have the grooves, then Rob must have listened to you and tried to fix the problem.
I don't think these hook quite as well as the bigger tapes, but they are only
1/2 inch wide so not as rigid nor do they have as big a hook as a 3/4 or 1" tape. Having said that, I don't find these difficult or inconvenient to use for cabinet work, but it is pretty rare I need to measure anything much over 4-5 feet. A wider tape is a big advantage when measuring 6 feet or more just because they are self supporting.Now, having typed that, I had to go out to the garashop to experiment. The little LV tapes are self supporting to 3'9". My little 5' Zippo that lives in my pocket collapses at 21 inches. I tested a brand new Jorgensen, my old standby Stanley and a Kobolt. Each one of these is 1" wide, 25' long and each one of them was self supporting to within a few inches either side of 8' even.
I don't know what in the hell that has to do with your original question, but there ya go.