I'm buying a synthetic stock FX Wildcat and will need to fix a sling so I've bought the FX front tube clamp with the stud in it but what's the best way of securing the sling to the rear of the stock? Ideally I don't want to drill the stock but if I have to then where's the best place to drill?

Any suggestions for a suitable sling would also be of help as I think a std one may not be ideal due to the Wildcat's short 30" length.