I do like the old kit, it always seems to work better and its easier to use, the only down point on some I have, is that the battery's can be hard to find.
I've not had anything to go with CDI ignitions, if they don't work they are never going to work as for as I know.
Has latest Mercury CANbus ECM-70 (SmartCraft) adapter and firmware upgrade.
When I get my new boat that will have a 50Hp.......I can plug a 60Hp ECM in using the 2nd of 3 BUS ports for a second Engine........then swap between them etc.
New boat will need that and I have clients for the rest.