Yes you're right Rich, which is why I advised caution. My point though, was even the correct sized ones that I've fitted on Fenders, have needed that method to get them installed. If I had opened up the holes to make it an easy fit, then they wouldn't fit snugly, the way that they should.
If the bass was on my bench, then I would know which method to go for but it's not, which is why I suggested alternatives.