Yes it does make sense, but only if everyone makes 50 of each colourway, because we are only getting back the number that we are putting in, and not everyone will put in the same number of hst's.
(Besides which you had better make it 56 rather than 50 because it is supposed to be multiples of 28

and you don't want to upset the organiser

In case

happens )
Rosemary.