Hi all! I just mounted a riverara mast on my boat! But I don't really like it! It seams to have play! When I pull it forward it moves the floor! I emailed the company for mounting instructions, which I followed! I put a 12x12 plate below! Used 4 20x 3 in bolts. How much pull will this thing have? Not a 100% confident in it! Any ideas? Would a seat mount be better? Any help would be great!