Been looking at some videos like ones from Scanner Danner and wonder if it would be of any use. I had multiple instances where I vacuum the system for 15 minutes and then let it rest another 15 minutes and check the gauges to see if they have dropped indicating a leak. No they haven't dropped so I continue the vacuum an hour or two and recharge. Then a week later find the charge has leaked out. Would the micron gauge be helpful in showing a leak too small to detect with the 15 minute rest test?