Stamp location

The “comment action” for mailgate and a WebRT stamp the subject line in
a different location.

WebRT comment subject line appears as:
[MyOrg #9999] [Comment] testing

Mailgate (action comment) stamps at the beginning of subject line (e.g.):
[Comment][MyOrg #9999] testing

Some of our techs have requested a uniform scheme for sorting mail based
on subject line.
Any suggestions on how I make this uniform (RT 2.0.15)?
Is it uniform in RT 3.x ?

Note: I already have some procmail filters already setup, perhaps I
could transform it before submitting to mailgate?

Thanks for the advice,