I agree. My Skeeter runs fine with HV ammo. I run mine "wet". lots of lube and the HV recoil spring.
Remember to install the recoil spring correctly. It fits both ways but only one way is correct, narrow end first.
Be aware of slide failure. Inspect for cracks often. I did suffer a failure and had to use a Firefly slide to get the gun running again.
Sig no longer warranties or imports the Mosquito from GSG.
GSG now markets it as the GSG Firefly.