Thanks IHL. That's the sort of encouragement I needed. My Heli IF rating is a bit irrelevant as it is, as I've never used it in real IF conditions. Never been in a heli certified for IF so always been under the hood.
My real IF has been on PC12 and only as 'copilot' (aka P2 ride along and ask loads of question about the EFIS) plus time on fixed wing simulator. Will get my head down then and pursue this.