man I use to sling lots of lead over my chrony! LOL That and all the other
testing shooting into various objects at various ranges, all my "can testing",
etc. does come in kinda handy at times now because I have a pretty good 'feel'
for about what kinda power/MV an airgun is producing.
Now I'll do a "health check" from time-to-time, clock a new pellet and - of
course - use the chrony when tinkering/tuning/tweaking/modding this or that
airgun.
Obviously if a fella has hunting/pesting on his mind when ordering/buying
a particular airgun and he's did plenty of research and knows it should be
producing say around 18 FPE, if the one he recieves new barely makes 14 FPE
I can understand him not being happy, complaining, etc.
If I recieved a mild magnum springer that many that own one state does
around 13 FPE and mine only produced 11.9 FPE but is very smooth, quite
consistent, plenty accurate I'd be ok with that - maybe soon enough kinda
thrilled

Heck I've got other airguns too so it's not a problem. Plus
later down the road when getting inside the gun I may get the extra power
back or decide I don't want it.
Chrony has its place but like brushing one's teeth 50 times a day, hanging
out in the bathroom for hours because one knows they'll eventually need to
eliminate body wastes, etc. the chrony can become a problem, a hang up.