And the reason FSI for one

In reply to MM Typeface and [FATAL] GPOS feature 'kern' causes overflow of offset to a subtable:

And the reason FSI for one doesn't use this technique/script?

Sort of related:
You know what's funny BTW? The guy who made Maven* being so proud that it has 6,500 kerns, except pretty much everything is (most likely auto) kerned... and it still sets like junk. Bah, who needs to worry about sidebearings anyway! :-/

* http://vissol.co.uk/mavenpro/

hhp