just curious what drill bit K2 recomends? sounds like they used a 4.1 diameter bit drilling too wide a hole... just a thought, but on all wood core skis (no metal in the core), i always use the 3.5 and tap the holes for a better hold.
case and point, armada recomends a 4.1 bit, i still like using the 3.5 and tapping the holes
The three screws was probably the cause of the first pull out, but why would they pull out immediately again with four screws? The likelyhood that they used the wrong bit twice or messed something else up twice seems pretty slim. Maybe there is some issue with that spot in the core of the ski? Dunno, weird problem.
The thing that would bum me out is that a ski that has been drilled once is worth a lot more than a ski thats been drilled twice, now you'll have to drill three times so you can't remount ever again and you can't really sell them.