Type effects were discussed in several threads here; a few claimed that complex effects would be easier if rendered externally then re-imported as ready designed glyphs.
I’ve experienced problems with the Hatch-outline filter on scriptural and connected fonts (discussed with Georg); it has not been resolved yet.
Should be admitted that many participants here (and I am one of them) have not mastered most of available techniques; while avoiding to learn Python scripting because of losing control on end-results, further to the believe that programming is not a type designer mission!! .
I’d suggest to add in a market place (such as the commercial plug-ins ) a section for script developers to sell their scripts and get paid for custom orders;
@RianHughes
I’m pleased to see your interaction at this forum;
(A connection after 21 years - TypeWorks London)