Hi Guys,

I'm planning to replace an Airmar B258 with the B265LH model (or B265LM haven't decided that yet). It looks like I need to enlarge the thru hole in the hull by 3mm (from 30 to 33mm). Has anyone tried this yet? Any gotchas I should know about? My transducer is located in the forward part of the engine compartment on the centerline and I have the stern drive setup.

Thanks,
Terry