[willy]

Ridge that was my baby now it belongs to kevin(whale). That boat was set up by a good mariner in south jersey before i bought it. It has a 115 Johnson on it and it was a sweet rig. Scuppers were always above the waterline and it had a top end loaded up with the enclosure up of about 38 mph. It cruised at 28-30 like a dream.
The tank was the original 50 gallon(maybe 60 I am not sure). Kevin changed it out due to some corrosion that developed in the aluminum.
I do not believe you can over do it as far as your reinforcement, you did a good thing, it just would not normally be needed unless you are like I said questioning your transoms condition. Or you are adding a big mama back there.
With the 115 Johnson, which is a light motor it would drift thru the swells I fish in at Sandy Hook Rips fine and if it was very rough it would occassionally gargle some out the exhaust on top of the shaft. I have been on two others when I sea trialed them that the engine would dunk dangerously just coming off plane to quick, they were both boats in very good condition but the motor was just to heavy for the arse, one was a 225 Evinrude two stroker and the other was a 200, I forget but I think a Merc and both of them displayed traits in handling like the engine dunking and a tendency to porpoise in a chop that I found totally unacceptable.
Pluse just sitting at the dock the scuppers were at or under the waterline constantly. That is as they say in Italian "No fu@&ing buono"
I have seen also a boat on this site where a new 150 was installed on the V on a bracket and in conversation with that owner found that the engine on his came dangerously close to a full dunking on several occassions.
Just some thoughts for you based on my observations. Good luck