decrepit said..
Here's me coming in with my opinion. Mandurah of course is the home of the Mandurah Mob, (with one Rockingham member). Coastal speed team have a couple more Rockingham members than us.
It's best to join a team you'll be sailing with, if you intend to sail mostly in Mandurah, then the mob is happy to have you, (yes we are a mainly a bunch of old/er fellows). I can't answer for the CST, but they would probably accept you as well.
If you are going to sail mostly in Perth, then pick one of the Perth teams.
Thanks Decrepit, windxtacy and fangman have both given me some good info today on the teams. I will register with gpstc later and nominate Mandurah Mob as the team I want to join. I had already decided that on the basis I would be doing most of my flat water sailing down there. I have already met fangman and look forward to meeting some more of the mob maybe Sunday.
Thanks everyone who posted on here or pmd me for your guidance.