Just remember that with both new cables fitted and still very slack - so the levers on the shoes are right against their stops with no tension in the cables - the self adjusters need to be wound up manually until the shoes are just lightly rubbing against the drums then stomp quite hard on the brake pedal several times to settle the shoes against the drums (the drums need to be on before you do this of course) It may be that the self adjusters can be taken up a few more clicks after doing this, remember what you're trying to do is end up with the shoes centred in relation to the drums with them just making contact, but not dragging, on the drums. - You have ground/filed the little lip off the drums haven't you? Only when that has been achieved should you now go to the cable adjuster and tighten the cables enough to just pull the levers on the shoes clear of their stops. I'm not talking about achieving a big gap here, they need to be just clear of the stops and no more - do this and the self adjusters will work well as long as they're not seized of course. On older cars we would usually say that about 3 clicks on the handbrake lever was what you were trying to end up with but this is out the window with self adjusting brakes. You may well end up with more clicks than this but if the cables are properly fitted and adjusted to just pull the levers at the wheel end clear of their stops then that's what you want.