In Febuary I bought a compression tester to get a reading on my new JE piston. The piston tested at around 215 PSI. Today I was bored so I decided to do a compression check for the heck of it. Five months of riding and the new reading is 195 PSI. I thought compression got better as the rings set in? The DS is running super strong and I'm not to worried, but 20 PSI drop is signifigant, right? All things were equal between the 2 test.