Between AC blades the differences are huge. There are differences in sharpness, guards and even size of the blade, effectively varying the blade exposure.
If you are talking about DEs the differences are more subtle. A flexible blade (like the new premium derby) will flex more on a razor that holds the blade with tension (like an ATT) than one that holds it by clamps the blade closer to the edge (like a Wolfman). Don't even bother putting one of those blades on a very-slanted-slant.
If you are talking about DEs the differences are more subtle. A flexible blade (like the new premium derby) will flex more on a razor that holds the blade with tension (like an ATT) than one that holds it by clamps the blade closer to the edge (like a Wolfman). Don't even bother putting one of those blades on a very-slanted-slant.