you may just be one of those unlucky people (like me) who have very "hard" hair that dulls blades quickly. When you used a cardridge razor (assuming that you are coming from something like a M3, etc) how many shaves could you comfortably get from a cartridge. I now get 2 or 3 shaves per blade before it is too dull to cut withot pulling enough to really hurt (for complete info I have used US Gilettes, Merkurs, US Personna, Wilkinson Sword and Super-Max)... this may seem bad, but it is a little better than when I used cartridges and they would pull after a single shave (but I would make them last for 3 or 4 b/c I hated to spend $3 or more for cartridges for each shave).
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