message hierarchy question

[Chipp Walters]

Mark,

I'm wondering why you're using backScripts instead of library stacks? I 
can understand using frontScripts, but backScripts are limited in number 
vs library stacks (outside development), and IMO typically reserved for

1) scripts of objects other than stacks; (see libURL)
2) runtime when you know you'll never exceed the max number of 
backScripts (10)

Just curious.

Chipp