wid ye?

I've never got past four days without shooting my bolt in some way shape or form so couldn't tell you.

I think you've highlighted a flaw in the system already. 4 days is no problem to the over 40s, but an impossibility for the under 20s and somewhere on a sliding scale for those in between.

Back to the drawing board. <grr>
 
I think we should adopt the wine scale for classifying shaggability.

Hit her over the heid with a bottle and if she goes down, ride her. Otherwise run like ****.
 
I think you've highlighted a flaw in the system already. 4 days is no problem to the over 40s, but an impossibility for the under 20s and somewhere on a sliding scale for those in between.

Back to the drawing board. <grr>

I think the tried an tested is the only way.

Although gambol did hit upon a novel approach, the element of jail risk is possibly too much for some<ok>
 
There's also the pencil scale.

Stick a pencil under each tit and under and between her buttocks. Then count how many stay there. If it's all 5 pencils then she's a fat ****.