For some background, when I moved into my current home about 7 years ago, I've had to have the A/C charged every year for the first four years until someone finally found a leak. It was at the king valve outside the house. I was told that if the valve was heated too much when it was installed it could have been damaged. The tech sealed the caps on the king valve and the charge lasted until now, about three years. It got warm here in Michigan a few weeks back and the house got warm so I figured, I'd try to fire it up. I'm always scared that I'll have another problem so I start it as early as I can to prepare myself for the recharge bill that may be coming. It was 81 degrees in the shade outside and the temp coming out of my vents was 62 degrees. The house was at 75 and I wanted to cool it to 72. I let the system run for about a 1/2 hour and it only brought it down one degree. Am I looking at another recharge or do these numbers seem OK and I'm just getting more and more paranoid each year? The house is 11 years old, two story and 2200 sqft with alot of windows.