I know what you mean MF. My curb find Big Bob slasher (which takes Victa blade bolts) made one hell of a racket as the blades swung around on washerless bolts.
Ended up putting new blades and bolts on as one blade was quite bent.
This was it before I cleaned it up - slashed the council side verge the other weekend and went through 2 ft high thick weeds like they weren't there - half throttle and didn't stall once (well nearly did once).
Amazing what can be done with 120cc and a bloody heavy blade disc can do
I remain on the look out for a cheap Victa2 stroke ute though