Hi Danny,
We use the custom rules to generate the comment content but not the formatting in the current implementation. We have it on our list to add an option to preserve the original XML comment formatting.
With that said, there will be "Keep single line when under N characters" option in the Comment Editor. that should make the WYSIWYG comment look a lot more like the auto-gen one. We will have a new Beta build next week.
Thanks!
Serge Baranovsky
SubMain Software
(800) 936-2134