Re: Use of SeaKing Blades
The last time I checked, The SeaKing (S61A) blades were entirely different from the 61N/L. So I don't think you would get anywhere with them. Even the Shortski uses N Blades.
As for BIM's, your right, they won't give you a warning of a sudden catastrofic failure but the will give some idea that there is an impending problem i.e. cracked spar etc.