Betweem 4AM and 7AM the wind up here is relatively calm.
Yes, we can shoot at 4AM, since the sun is already up. And the sucker stays up until 11 PM!
As for personal experience, I tried three different .17's; the .17 Bee, the .17 Mach IV, and the .17 Remington. I was not and am not impressed with any of them.