The 1k sumo max bags I have fit perfectly. The 1100 fly highs that I was also looking at were close in dimensions, I think they were 50x24x24 and the 1k bags I have are 50x22x22 or roundabout. Not sure if I will need to brace the divider panels like you do need to with the 1100. I was doing the pump over the side last year to see if I enjoy surfing before committing to the full reversible upgrade. The surf platform has a less pronounced lip and is much narrower and is what the newer boats use. Weighted down the platform digs, but at $1k I'm not nearly in love enough to justify it lol. I bought the sumo 500lb IBS but there is room to go longer in the legs of the bag which is what the 750 does I believe. If you are a heavy surfer then a prop will also be on your list at some point but I'm using stock and its fine for my needs. If you are going to be switching sides then one of the transfer systems will prob be in your future, whenever that $500 grows on that money tree I'd prob like to integrate that as well, beats having to dump and fill all the time.
