Is it due to lack of scrub wheels on the deck ? Some have 2 and some have 4
My Scag has 6 wheels on the deck. There is 2 on each side and one in front & rear of deck and it will still scalp.
You can raise your cutting height high enough to stop it from scalping but I like my grass cut lower than that. If I cut mine at the height that I like it will scalp on uneven terrain.
It's simply because of the bigger & wider deck. Wish I had bought a 48" deck.