Thanks all for the input and answers. What I'm going to do is rent a slightly longer board for a day this weekend and try it.
Am converging on something like 155-156 on a Camber or 153-154 on a Rocker. I might make look at something a bit stiffer also. Just won't want a huge board as I'm still learning...
My current is a 152cm camber with medium flex. Is prob a bit too soft / short / flex for my weight of 190lbs.
But will rent and try that other option for the day!
Thanks all for the help