My UL has no lead in the nose to balance. The classic I built had lots. My UL has no rudder to aileron or elevator coupling issues, very straight KE flight.

I think the classic lightning is faster, could be the larger intakes on the UL. I flew side by side with a p180 powered classic with my UL and a p200. After the entire flight flying together I think we were the same speed, but I had more power. Both were fast.