Is this a good way to trap squirrel?

no

I've caught them in attics that way using peanut butter and apple. Havent tried it outside.

I’d end up with a deers head in there.

i use a marshmallow with peanut butter on it put onto the trigger of the 110, i then put it up on a tree running up and down and when they are coming down or going up the get it

Agreed
Pull the trigger wires close together and thread a piece of sponge over them both then lather the sponge with peanut butter

I tried the peanut butter thing, and didn't catch anything, but I am going to try this

Did ya stab black sunflower seeds into the PB ?

That’s the icing on the cake they can’t resist!

I use this rig on barn rats and it’s deadly. Don’t see why it wouldn’t work on squirrels. Peanut butter and sunflower seeds in the bottle cap. BMI 55 mag.

does the cap usually fly off? or found a way to keep it on?

The wife are bent at a 90 degree under the cap. Never have lost one.