Anyone have any experience with AC Pro for refilling a system with a possible slow leak? My Buick seems to be misplacing a small can of R134A about once a year, and it's getting hot air again even though the warm months are almost over i don't want the system to run dry since i use it all the time. I know the typical BITOG mantra is R134A only, no leak sealers, no seal swellers, only dye is acceptable for finding leaks, but while it says the product will seal leaks, i am not sure if it contains leak sealers or not. I have seen numerous positive reviews of the product and really like the reusable hose/gauge. Yes i know about not having a high pressure gauge, and am okay with servicing the system this way since i won't go crazy with trying to over fill it. Thoughts or opinions? I am unable to afford professional AC repair at this time.