https://www.tinboats.net/forum/viewtopic.php?f=48&t=37500
Here are some videos I posted earlier this year. That was the first run of the year before I put the tm back on so it bounces a little more than normal. It will run shallower but I need someone else with me to take the video, I was running and holding the phone with these.
It is a true flat bottom. I usually have the tm and 2 batteries under the front deck along with a toolbox, dry box, on board battery charger, big freaking come along, and first aid kit under there. Anchors front and rear. Under the rear seat are spot lights, more tools, and everything else I think I might need. Under the rear deck is 2 -12 gallon tanks, a 3 gallon oil tank and starting battery.
On the pic with the gps is 54.2 miles round trip and 10.8 gallons used on the MercMonitor, which is accurate to +/- 0.1, for an average of a little over 5 mpg. I hit my best top speed of 51.3. That was mostly cruising 3500-4000 rpms, which is 30-35, backing off where needed.
During our winter gigging season I put a iron pipe rail on the front deck, pic to follow, with 2 400w metal halides and a 1000w metal halide. Ballasts go under the front deck and a 2800w Yamaha generator on the back deck. Usually have 4 guys and run back to the ramp at night with 80 fish. The 250 still jumps right on plane without a struggle. When I had the 115 with this load I had to have at least 100 yards to hopefully plane out enough to make the riffles back to the ramp or float it back. I busted a shoe on chunk rock doing this and bumped rocks several times. If I would let off any or attempt a tight turn it would drop 6" in the water and that is where the damage starts.
I have run 49 mph several times running across the lake in heavy chop. Have to back off for bigger waves and it is a little rough. When the pleasure boats are out and I have to cross the lake I trim down a little to pull the bow down and can maintain 35 without getting beat up too bad. The whale tail helps considerably in those conditions by dragging the rear and pulling the bow down to plow through the waves.
A 115 will push it and do ok, but for me it is tremendously under powered. I will never recommend going less than max rated hp on a hull, especially for a jet. It is cheaper to start with it than to figure out it doesn't work and have to try to trade, sell, or upgrade later. Nobody is ever going to come back later and tell me I said it would work and it is underpowered.
What I can tell the op, try to get a test ride before buying if possible. Figure out how much weight you're going to be carrying. Add up everything hull, motor, gas tank or tanks and gas, trolling motor, batteries, anchors, fishing equipment, and how many people most of the time. It adds up quick and jets are extremely weight sensitive.
Here's with the rail.