Yes Sapper - much more suction. It sand blasts the lawn and the alloy deck (wears it out over time). Very common over here in wa
This is why honda sell pairs of high and low lift blades - marginally better cut of 4 without too much vacuum
I push my steel deck mowers down to the verge and run 2000 rpm for 30 sec to a minute - gets 1/2 the grass off and halves my cleaning work after each mow. Only takes 15 minutes to get the mower ready for the shed
2 sharp blades better than 4 blunt in my opinion