Yes. I see the 6 and I think: pretty tall, just a bit taller than me as a baseline. Then the 3 indicates another bit more. At no point am I adding the quantities to achieve a total. It’s two pieces of information in something akin to a binary search.

I do woodworking and framing and approach is similar. Measure out to 6 feet first, then move out 3 inches more. It’s iterative refinement. To measure lengths I always do a few bisections like 3 feet, 2 inches, and 3/4 plus a sixteenth. I can remember a sequence of 3 or 4 integers for about a minute, long enough to transfer the measurement. Give me something like 135mm, and I’ll forget in a few seconds.

When Europe switches to metric time I'll switch to reporting centimeters for my height.