extensive tests slow a slight speedup for COMBINE
extensive tests slow a slight speedup for COMBINE

zitterbewegung/cuckoo,Electric-Coin-Company/cuckoo,Electric-Coin-Company/cuckoo,Electric-Coin-Company/cuckoo,zitterbewegung/cuckoo,daukantas/cuckoo,daukantas/cuckoo,Electric-Coin-Company/cuckoo,daukantas/cuckoo,zitterbewegung/cuckoo,zitterbewegung/cuckoo,daukantas/cuckoo