This issue is solved if you're able to go custom by asking for the carbon reinforced perimeter option for legacy builds like the 5500 and 8800- I also haven't seen the issue in anything with 'carbon' in it, ie, V6 onwards. So anything at retail these days won't have that issue.
Boot also really only 'settled' with pads stuffed with the black snake foam, which isn't at retail as of the 2300 onwards I believe. All Vaughn's do shrink or compress slightly, but the newer the lineup, the less it's a factor.
Asking a retailer/goalie guru like Dudo at GM to help you out is great idea too!