Makes complete sense, Simon, but could you say whether MGII filters can in fact be used with MGIV paper in respect of their speed matching and whether the change that came about with MGIV filters, namely the change to double exposure from grade 3 instead of 3.5 as with the older speed matched(I hope) filters is correct.

I have acquired a set of MGII filters complete and in their box, recently and believe they were used very little so fading may not be an issued.