I was at the UK Single handed Dart Championships last September and met Brian Phipps. Brian is the sole importer of Dart 18's which are now made in South Africa. If people haven't heard of a Dart 18 they are a single manufacturer one design beach cat. However, what I found to be very interesting is that there can be a difference of up to 6 kilograms between Alloy masts. The lightest masts being 18kgs and are kept back for the more discerning racer whilst the heavier masts are sold onto the non racers and people who aren't seen on the TT Circuit.
So if a very successful Cat SMOD Class can accept a 6kg discrepancy in mast weight what's the problem.