Hi Norm,

I was always under the impression that there should be around a 10mm clearance between the end of the blade and the mower skirt so as to provide a good pick up suction.

If I recall correctly the carrier you have there was originally Victa's mulching blade carrier and used the wide blades opposed to the standard narrower blades that generally are fitted on Victa's.

Cheers,
BB.

I live a 24 Hour lifestyle, but every now and again I seem to fall asleep, well at least that's what my wife tells me.