LOl....I dabbled in RC boats in the early 90's ,my boats werent high end ,but I beefed them up by changing under the hull prop
& shaft set up to a drive dog & strut ,also made my own adjustable trim tabs!
LOL...reminds me when I let my daughter run my boat ,she hit reverse in full throttle .I didnt zero out reverse because it was a
mechanical speed control ,which at the time I ran because I added more battery cells ,a whopping 14.4 volt.
When she hit reverse it the boat became a submarine an took a deep dive .lucky I had styrofoam in the hull ,it popped
right back up out of the water!....LOL
Make sure that there is a block of styro foam in the hull or sponsons!