With all the fantastic Sig 4*'s out there, standard or modified. Thought I would start a thread on Ideas, modifications and potential to bash the humble Sig into something truly different.
One "idea" I had was to build a foam core or framed high aspect ratio wing under a streamlined 4* fuse & tailfeathers, fitted with your favourite fast engine.

A cheap fun pylon racer!!
Anyone else has any crazy ideas, please post them.
I must drink less coffee!!!!!!![X(]