when I bought a boat from QLD and it arrived with a substantial T Top ...I thought well thats the first thing to go....in fact nearly sold the top on day 1 to another 565 man. Ten years on..its one of the best things since sliced bread ..shelter from rain and sun...lots of storage for rods underneath the canvas..and something to hang onto when you want to go outside the cabin ...or are loading at the pier...
Winter time its different Bimini and clears give a lot more shelter....try Bass Strait on a cold clear day!!!!