When I'm doing multiple small prints from the same negative (think APUG postcard exchange) I really appreciate the ability to use short exposure times, adjusted to the nearest 0.1 second.
I definitely see why you do that in this special case, but I was referring to the poster, who sounded to me like he was not doing postcard exchanges. I wouldn't call post card exchanges the norm. Most people don't need to bang out 50 near-identical 5x7's as quickly as possible. And many timers (including my own) cannot do fractions of seconds. So I think 5 or 6 second exposures are not generally desirable, hence my comment above.
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