Gillette VS Merkur: I have been looking at double edge razors for a while and used Gillettes thirty plus years ago. I have found some adjustable Gillettes on ebay and Merkurs on web sites. Is there any discernable difference between the two companys razors in the way the blades edge is presented for the cutting task? Gillette adjustable verses the Merkur HD adjustable and the HD slant bar. I have a problem around the under side of my chin and under my lower lip with grain and bleeding. I have really stiff whiskers with definite grain in the growth pattern. I am wondering if one has a head geometry that will allow for a close shave yet still provide some degree of protection. Should I try the slant bar or is an adjustable the way to go and if so which one?