Originally Posted by Cranny04
When I said that using metric was more accurate, I was referring to scaling some one else's recipe to my system or to new crop of hops... If I take an ounce of hops and adjust for a different AA I am much more likely to round the last decimal place... If I am using grams I'll still probably round... But if I round the the .1 gram compared to the .1 ounce (or even the.01 ounce) I'm closer to the actual weight of my hops (I.e more accurate)
Being more accurate will allow me to be more precise in my brewing process from batch to batch...
Now all of this goes out of the window if i am designing a new recipe...
What this is is pilot error. If you are rounding to decimal places for ease of calculation and losing precision, that is your error. And don't get all significant digits on me. This is not the fault of metric vs sae.
If you have a stick 10 cm long and convert that to meters, it becomes 0.1 m, then you can round it down to 0 m.
One unit of measure can not be more accurate than another. If your scale has a different level of precision for one unit vs another. That is your scale, not the system of measurement.