I tested the big target to micro target transition at the range the other day. I didn't have a one inch tile so I used a quarter sized IPSC target and marked a 1 inch black spot in the middle, my rifle was zeroed for 200, so I had to aim about 2 inches high.
The first 5 tries was hardly on the target at all. Then I started getting the hang of it a bit, the last 4-5 shots was within 2 inches, and only one inside the 1 inch mark. My times was fairly consistent at 2.5-2.6 secs.
So yes, 1 inch tile is to small to be used in a rifle match. If the rifle had been zeroed at the exact distance and I took more time I could hit it, but at the expense of hit factor. So no matter how you put it, making a stage like that makes no sense.