Hi, I have an EDgun Leshiy 2 with the fancy electronic gauge called the MeaZy Gauge. Personally, I like the analog better but its what came with the package. I filled to 288 bar and in just over 7 days has dropped to 228 bar just sitting after a fill. The only times the gauge actually went up a bar or so was when sunlight was shining on the airgun. It keeps dropping bar. Is this a gauge problem or a leaky Leshiy?