Hello.
Please believe me that there are switches and then there are switches i.e. good and junk!!!
I assume by "import style switches" you're referring to those switches with the square circuit board that is enclosed as opposed to those "Fender type" switches which have an open, half round, circuit board???
It's not only the distance between the screw holes that you need be concerned about i.e. you need to check the depth as well. I have this issue with my Jacksons. Some time ago I ordered some CRL "Fender type" 3 way switches and they don't fit i.e. the cavity is not deep enough for the switch (and not to mention the wrong style tips).
The distance between the screw holes on my Jacksons is exactly 40mm (cannot see that your Ibanez would be any different).
I've now ordered the below i.e. they sure do look solid (as opposed to many others that I've found on the Internet which don't get great reviews at all). What's more: these switches already have the correct pins bridged (for HH setup).
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Amazon link:
https://www.amazon.com/KAISH-Guitar-Pickup-Selector-Plastic/dp/B07K67HRDN/ref=sr_1_fkmr0_1?ie=UTF8&qid=1547538693&sr=8-1-fkmr0&keywords=KAISH+Heavy+Duty+3+Way+Guitar+Pickup+Lev
I've spent days, if not weeks, looking for a decent, quality, 3 way switch for my Jacksons (still cannot fathom why original Jackson parts are not available for sale but anyway) and this particular switch appeared on Amazon only a few days ago.
These below "Fender style" switch for example will NOT fit in a Jackson (not in a Dinky anyway) i.e. they're too deep (they're pretty common place though and this one just happens to have the correct tip). Maybe will fit in an Ibanez??? Dunno I'm afraid.
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