Thanks for the replies. Actually, there are other "height" situations that I consider.
My normal course has fairly thick grass and a player will sink into it a bit, yet the ball sits on top, so the ball is higher than one's shoe soles.
So the driving range situation (it was demo day, hence little grass) was just the opposite - lower than usual by quite a bit.
And back to the course, if the ball winds up in a very tight lie, the ball does seem to me to be a bit lower than usual. I usually use a little more knee bend to get to it, but I was only guesssing about what might facilitiate impact. I will definitely try the above suggestions.