The only thing I've never really liked about my Alps vest is the magnets that hold the seat up. In normal walking conditions I've never had a problem with them but if I was in a hurry or carrying anything the magnets just wouldn't pass the test.
I've always said the Cabelas speed seat design was the best but never thought of modifying the Alps vest until I saw one of Dave Owen's videos where he did just that.
Did it myself yesterday and it was pretty simple. Maybe 30 minutes and $4 elastic webbing.
https://www.amazon.com/gp/product/B074ZSXTZ4/ref=ppx_yo_dt_b_asin_title_o01__o00_s00?ie=UTF8&psc=1Started by cutting off the existing straps on the side of the seat. I reused the buckles. The existing straps are 3/4" I believe and the elastic is 1" but it will fit in the buckles.
I made a cut on each side of the seat and shoved a rod through to then pull the elastic through. This looks like what Cabelas did and I assumed that was to allow there to be enough stretch in the elastic to flip the seat.
There is a hard rubber and a foam lining inside the Alps seat. I ran the elastic in between those layers. I made a couple stitches where I cut the fabric.
Then it was just putting the elastic through the buckles and snaping them back to the existing location on the Alps vest.
Seemed to turn out great. Without the kickstand you can still use the magnets. With the kickstand it doesn't want to fold up as well. May just need to play with it a little more but glad I decided to do this. We will see how my stitches hold up.