 Priddis averaged over 31 disposals per game at WAFL level, playing in a second premiership for Subiaco and winning the Sandover Medal with 58 votes at the end of the season, a competition record (since equalled by Kane Mitchell in 2012).Having been upgraded to West Coast's senior list for the 2007 season, Priddis recorded 45 disposals, 30 handballs, 15 kicks, 5 marks and 3 tackles in round 14, 2008 against Hawthorn.His 30 handpasses was then the highest tally ever recorded (recorded since 1987), until Gary Ablett, Jr. broke the record the following season.