Pre-cut planks are not always a blessing. They can sometimes be a real pain in the you-know-what, and as you rightly say, it is always difficult to know when to trust the factory's efforts. On my Falkonet Leudo, they were perfect, but the garboard strake is oversized (so that you can shape it to form). So with the Leudo you HAD to plank from the top and work your way down to the garboard strake, That goes exactly against all planking rules that I have been taught which dictate that after the first four or five planks from the top, you move to the garboard.