Category: Airplane class: ME Land.
Same cat and class bro.

And you said safety pilot not a pilot pilot. You can romp around on the controls all you want. His insurance won't have any of it when you ball it up though.

Edit: why don't you just go spend an hour or 2 at the local fbo in a 182 and get HP endorsement ? I mean, you need it eventually anyway. Unless you plan on flying Seminole forever.