I have been debating getting sacs all season as we are all beginners to surfing. We were borrowing a beginner board from some other friends for a while then decided it must be the board holding us back and spend a bunch of money on an inland surfer Swallow V2.. Don't get me wrong it's a sweet board but $ for $ spend that money on sacs.
I have spent several weeks looking at wakemakers.com trying to decide should I spend the money or not...... Well I realized yesterday they are actually about 5 minutes from where I work so I drove over and picked up some sacs.
Mastercraft X-45 used the stock rear on the surf side and the stock KGB.. Then added the 1100# sac to the rear locker and the 400# to the bow.
All I can say is WOW! HUGE difference in size and length. The bigger riders went from struggling with going wireless to it being easy, and the lighter riders are now progressing to tricks with the extra speed and size.
$ for $ I am not a convert the best thing you can do is buy some sacs and they really are not even all that expensive.
Just did first test yesterday I will try and take some pictures this weekend.