BlueH2O
You can't go wrong with a bracket. I think that we are still graced with MJ's presence because he had one on his V. I am running a 115 on my 18" set back bracket and have not had an issue with my motor dunking and becuase of the performance benefits of the bracket I can run a 115 with no issues.
My bracket is not filled with foam and it is considered a floatation bracet. You mnhave to be able to get to the mounting bolts for the bracket and the motor.