ORIGINAL: plugin
Is a Sig Somethin' Extra too much too handle as second plane? I know it goes beyond the capabilities of the ones I listed, but I figured I'd ask.
It really depends on your flying skills. It could theoretically be a second plane if you keep the control throws low but it won't be nearly as forgiving as the others you mentioned. Personally, I would make the Somthin' Extra a 3rd plane. Some people could probably pull it off though.