I still don't understand either. Better tag him if you want him to chip in @monsterer
I burned an allocation which was used for a different market maker model which never came to fruition.
Did you mean:
1. you(monsterer) bought some METAFEES [amount=X] (from metaexchange) with your(monsterer's) own BTS [amount=Y] some time ago,
2. at that time you(metaexchange) wanted to use that BTS to do something (e.g. polo hedging),
3. but at last you(metaexchange) didn't do it, or get it back without loss,
4. now you(metaexchange) bought back the METAFEES[amount=X?] from you(monsterer) with that BTS[amount=Y?], then destroyed the bought back METAFEES[amount=X?]