Then perhaps you should try one of the shorter lofted Muhles.
That may well be a good plan - provided they ever make a 25mm with a 50 to 55mm loft (I think the closest they can get to that currently is 23/56). I do have the Frank's Shaving synthetic - which is considerably smaller than the H.I.S., but once again, it was a bit "less" than I had been hoping for.