We were racing around the Nab tower last saturday and on our way back to Chichester we caught a marker, it was enough to stop us dead in our tracks, luckily it had wrapped itself around the prop so we could use the cutter which freed us up. 10 minutes of mucking about pretty much ruined our race. The marker was the size of a ball cock and with the tides that we had was impossible to see. When will someone take action against the selfish people who do this dangerous practice?