As for the mod itself. I just tried it on my 555 and I noticed only a subtle difference. As odd as it may be, I think I prefer the foam. As for Sennheiser's st

As for the mod itself. I just tried it on my 555 and I noticed only a subtle difference. As odd as it may be, I think I prefer the foam. As for Sennheiser's strategy to cripple the product line to handle a different marketing segment; it reminded me of a Steve Blank's post. http://steveblank.com/2009/04/16/supermac-war-story-7-building-the-whole-product/ http://steveblank.com/2009/04/16/supermac-war-story-7-buildi...