Not 100% sure but they seem to have non-standard terms for blades. For instance on my Ztrak they have Low, Standard, High lift then the Mulch blades. I would assume in your case you would be right, it is more of a medium lift. Something between what a high lift would have and the standard.My question is more about the Discharge style. Is it a Medium-Lift?
I use Gator blades by the Oregon company. The trailing edge of the blade is serrated and cuts up the clippings better than a conventional blade. Usually a JD dealer will have them but I have a local hardware store in my area that offers them.On my GX345 with a 54 inch mower deck the manual lists several replacement blades.
I do not have a mulching kit. Just a side discharge.
What is the difference between the standard, discharge and Hi Lift?