As such, Bob's comments were right on the money.

I was just quibbling about his comment about airspeed being unrelated
to excess power. That was indeed wrong, and if it went unchallenged,
some readers might think it was right.

However you slice it, the original comment ("The Arrow has a healthy
sink rate the requires some extra speed initially to keep the sink
rate below 500 fpm") is just plain wrong.

True.