+1 on Feather blades, especially if you have a very think and coarse beard, cuts like butter and very corrosion resistent.
100 blades for $19.99 plus shipping. Order 2 packs and should be stocked again for over a year.
Ebay 100 Ct FEATHER HI-STAINLESS DOUBLE EDGE DE RAZOR BLADES NEW | eBay
edit> Warning yes they are Very Sharp but 1 WTG and 1 ATG/XTG, no tug and you are BBS Smooth. Again they are VERY Sharp and are unforgiving.