I am wrapping up my M&S 80 and after putting on the top with add glass , I realized the too wide replacement seal overlaps on my add glass seal. The original seal was probably half the width and double the thickness of the replacement. Is the accepted practice to cut the seal down to proper size? The only thing I notice is that even now the seal doesn't fit tight to the body and cutting it will most likely not improve that if not worsen it. Thoughts ??