I've never used a straplock. In my opinion, Fenders don't need them, and neither do Burns guitars as long as the strap button is located on the tip of the bass-side "horn" as with the modern reissue Marvins.
But... I have two Gibson electrics which have strap buttons on the back of the heel, and since Gibson strap buttons are so small (which doesn't help), there is a constant danger that the guitar will fall forward off the strap and be severely damaged.
Can anyone recommend a straplock set which can be simply attached in place of a Gibson strap button, please? I've checked out the UK axesrus site, but the choice is confusing...
TIA,
JimN