Its been a long process but I've come to the conclusion that the best scopes for air rifles are the air rifle specific ones so the Sidewinder should be great.
I had a Harris, made the gun feel heavy and unbalanced. For prone shooting i made a small set of shooting sticks from garden canes. They cost nothing, weigh nothing and are just as effective.
Happens to us all. Even worse when you go through a long spell with no success.
Im off out ratting in half an hour. Wish me luck, not even a glimpse of a rat the last three outings!!