My thoughts on buying a used US based VWM Blade:
1. Make sure the hulls are kevlar (almost all are). Look for dimpling, as described in earlier posts.
2. Check whether the daggerboards leak (my first low aspect boards leaked)
3. Inspect the rudders closely (the earlier types cracked at the rudder head)

That's about it. Most of these items have already been replaced on all early VWM Blades, but if you are looking for things to check - then that is it.

Later models of the VWM have already have these evolutions in place. It is an evolution and things do get better in each cycle. This is not a trend for VWM boats, but for all boats. Certain hull numbers have always been coveted because they are "stiffer" or "better built" - N5.2 2300 series boats are "the fastest" still today.

AHPC has had many more boats built from their moulds and have had a chance to perfect their product. US built VWM Blades have had many fewer boats built, but have been improving them with each cycle. The latest boats have been VERY good, IMO. The Blades are just as well built, just make sure they have been taken care of and kept up to date.

You will find lemons in every line of boat/car/golf club/etc. You just need to know what to look for.