I've been shaving with DE razors for a long time ... since 1968. I know what I'm doing, but that doesn't mean I understand what I'm doing, particularly when it comes to razor specs. My three favorite razors -- a Tartara Masamune closed comb, a Henson AL 13, and an old Schick Krona -- all fall into (I guess) the "mild but efficient" category, but their specs (things like blade gap, blade exposure, and so forth) seem to vary (not wildly, but also not negligibly). For those of us who are not engineers, what are the best at-a-glance specs to look for when sizing up razors I might like? Are the absolute numbers important, or is it more a matter of ranges, below or above which a razor is likely to move out of my comfort zone, and if the latter, what would you say are the ranges to consider for "mild-ish" razors?