Damn, so that's how you use a Kreg... I've had one for over 10 years and used it like a hammer... should have realised you don't hammer screws.  No wonder their support gave me a hard time.


 BTW you may have noticed I mentioned using Coarse Kreg screws for Ply and MDF (as per the experts), well a funny thing I could not find 19 mm or 3/4" coarse screws anywhere including on Kreg's site so a technical question has been raised with them regarding the matter. 

SCREW IT!... have you tried them?

If your first cut is too short... Take the second cut from the longer end... LBD