Hi Norm,
Firstly thanks for that, I thought that this might have been the case as I've seen them like this before, but honestly having a muffler blowing stinkin' hot air straight at you isn't pleasant. I've got a stand in Briggs on one of my Scotty's that's just there while the original engine gets a rebore and it has one of those narrow long straight barrel mufflers fitted and with it blowing a bit of smoke it just makes all your clothes stink. Normally they had the fat oval muffler fitted with the screw attached deflector plate to blow the exhaust sideways and away from the person pushing the mower, now that's sensible.
Cheers,
BB.