I have a 1991 H 42 with a Yanmar 4JH2TE- great engine , running perfectly! I was wondering if anyone had gone to the trouble and expense of fitting an interface from engine to NEMA so that engine data can come up on the new MFD's ( I have a Raymarine E7D)- Noland offer a unit- just wondering if anyone has done this and find out whether they believe it was worth the expense and effort after doing it?? I have read it has worked very successfully on larger engines- particularly twin engine installations on larger power boats, but haven't seen evidence of anyone doing it on small singles.