I hover and torque roll an 8 lbs 60SuDoKhoi w. YS91AC spinning a modified Zinger16x6. I do find that flying or bumping your throttle makes either much easier. It can depend on the weight, prop and at which throttle setting the plane will maintain altitude. If hovering at a steady throttle setting, your elevator and rudder inputs are far less effective, than if you time them with a blip of the throttle, as in flying the throttle.
I have to get me some of them apc16x4W for my YS91AC engines, does Tower sell them?
DKjens