We have had six SEs flying in our club during the past year, two of them mine. The wing holding methods were equally split between plastic zip ties and #64 rubber bands triple looped. One of my planes uses rubber bands, the other is zip tied. I have not noticed a problem with either method. I have heard that a flyer in another local club had his wings come apart while doing multiple snap rolls, but haven't had the opportunity to speak to him about it.

I do recommend that you double-, then triple-check that the 'J' bolts are securely mounted into the root rib. One of our flyers chose to drill the holes "slightly larger" (because he was having trouble threading the J bolts in), and also forgot to epoxy the bolts in. [X(] Fortunately a bolt pulled out when he assembled the plane at the field.....rather than during a flight. He now has dozens of flights on his SE without a problem.

I think you will enjoy your SE. It's not fast, but it is smooth with no bad habits!