1) What are the advantages/disadvantages of crimped on lead outs vs wrapped. I have the correct hardware to do either but can't decide. I purchased copper wire from Brodak for wrapping but it seams a bit stiff and the diameter seems a bit to large and I couldn't get a tight wrap on my mock up piece. I have done the crimped version several times but would like to wrap the ones on my new plane.

2) I'm afraid it's going to come out to nose heavy to use the factory muffler. I have seen the little rectangle headers that seam to do nothing more than duct the exhaust outside the cowl, is this assumption correct? I have access to the mill at work and can make it if that all it is.

Thanks
David