QuoteTinnabulus was Ian Proctor's original Mk 8, finishing 17th overall (from 133) in the 1958 Burton Week that was won by Intuition!and he was in the 30's in 1959 from 180 dinghies....Tinnabulus was being sailed by someone else in 1960....
In 1959 Ian launched the Mk9 and in 1960 he launched the Mk10 so despite still sailing 1604 in the Burton Weeks in 1958 and 1959 he was looking to the future whilst his Mk8 was still winning.