<span style="font-family: Comic Sans MS">is there a difference between the seamaster planes? i've seen a couple of pics of them with a v-bottom or tunnel hull, and others that are flat bottom. there is one at my LHS for sale through the owner, but i don't really like the lines of the flat bottom version. is it a modification someone did? pretty simple? how about a twin? i saw a thread for one but the pics didn't work anymore. that would be nice. </span>