I don't know about that.... This is my 4th self propelled mower from over the years. My first was a sears (don't remember engine size) that mulched with no problems, next was a Yard Machine (which was the best & cheapest mower I have every owned) with a RWD and a 140cc engine I had for over 10 years and it cut great, I then purchased a Troy-Built 190cc from Lowe's and which cut deeper grass than what I'm cutting now. The only thing I did not like about the Troy was the InStep drive system lever... It was the most uncomfortable way to mow the grass and it put blisters on my hand so I returned it and got this HU725EX 190cc engine thing it would have the same power as the Troy-Built mower.
But thanks for the reply and trying to help.
Thank you for the tip. This is my first AWD mower. In the past I have only had rear wheel drive mowers.
Lowe's has a 30 day money back (for any issue) on power equipment.