I agree with Tim. Slap a 300xs on any of the 3 and you have 100mph capable boat loaded to fish with the right driver and prop. I don't think the opti can push these boats into the range where the true hull differences will start to play out. Maybe a 300x would. I tested a 30p hydro from Nathan last month. It was the first of 3 I compared that morning. It went 97 with a little over 1/2 a tank. I ran it at the end of all the testing with an almost bone dry tank and I also put the trolling motor under the bow to get it out of the wind. I was going for a big number. That is nearly a 100lb difference in gas and getting the troller out of the wind should help as well. The boat ran 97.4. Almost no difference. Around 100lbs separates all 3 boats.
Denver hung a 300xs on his 2+2, so we will see how that pans out for comparing all 3 models with stock 300xs motors.
I have seen huge differences in props and the time it takes to get to high speed. To me that is the biggest reason we don't see more go faster. most are happy running 90 (way faster than most bass boats go). Not to mention no stock prop is going to run that speed. It takes about $1000 to get a worked high pitch prop to run in that realm. It will be a single purpose wheel most would never take fishing or on a rally run. I would never bring my big wheel out if I thought I might end up lining up against another boat. It's 40-90 speeds are way slower than other props I have.
Also, it takes about 1-1.5 miles to run into the high 90's. That is a lot of water and time at speed. It takes a lot of seat time at speed to feel comfortable at that speed. These are not drag boats so you won't be able to burst into big numbers and back off quick. You will have to get them aired out to do it.
My boat will run 90-95 easily any day with any prop over 28p. It will do that with the motor 1/4 - 3/8 over and neutral trim. You feel very comfortable at that setup. It is a little unruly between 95-98 and requires higher motor heights and trim. The boat is now running loose. Pucker starts above 98 when the motor is 1" over at max trim. To me it's more psychological. It's a speed that a lot of things have to line up for (perfect weight distribution, very light winds, and stable water for a long distance).
i believe these boats have 102-104 in them with a stock 300xs and a full fishing load. More if you can get the boat to run without all the gear in them stripped clean. Battery ballast is needed so not sure what can be gained by pulling all the heavy stuff out just to put the same ballast back in. We will see next month when it cools off.