Hi, our boat (previusly loved) came with a PRM80 which failed at easter, and was replaced by C&RR (£50 excess). Six week later the replacment faild in the same way, this time no charge though. However the engineer fitting the replacment, a PRM80 told us that the PRM120 was a more reliable option and an exact match in its fittings. But you might know by this time he was cleaning up ready to go so at the time not an option. I think now with that knollage I would definitely go for the PRM120. No question.