Understand my definition of overstable is different.
Take a look at Lat64, they market a lot of their straight stable discs as overstable. It just happens to be the best way to help people understand how it flies before they buy. For most people it will be slightly overstable. For me the stability is only present at the end of the flight, which is a unique quality in a disc.
MVP isn't making your usual type of disc that needs seasoning. They are giving you molds that you know you can pick up off the shelf and they are ready to be controlled.
To be fair here, the Disc Nation salesman in me was very reluctant to admit that the Shock won't be a true overstable mold