Epiphone G400 Custom - Replacement Volume/Tone Knobs that fit?

[Slow Graffiti 0]

I just purchased a 2006 Epiphone G400 Custom.   One of the volume knobs was cracked, so I am trying to find replacements.

I know Epiphone uses the metric 18 coarse-spline split shaft pots, and that is the case with this guitar.  They are not the imperial 24 fine-spline pots.

The amber knobs I purchased are consistent with that - 18 coarse-spline -  but won't fit past the very top of the pot.

One of the pots already had the shafts pushed together, so that's already been tried.  The original black knobs still go on and off every pot interchangeably with no fuss.

Any ideas?

[Yorgle 76]

You have to use an x-acto blade to scrape some of the gold point out of the splines.  Then they will slip on easily enough.