New poster, old lurker. Very new to pcp and I bought a prophet .25. It's usually shoots with a standard deviation under 5 in a 10 shot string. The first shot I fired is always 15 to 20 fps slower than the rest of the shots in the string if I let it sit for a while. I only have 104 shots through this rifle. Is that to be expected? Should I put a better regulator on it? Thanks in advance for any advice given.
MK
MK