Personally, I have always viewed having to regen multiple times as a sign of something being wrong.... A CRC for example. With the ability to move relations to the footer in recent releases, even more so.
We use drawing templates with formats and I don't have any problem showing model parameters in them. We don't use any data manager so maybe that is the difference. I created the drawing formats long ago, they are all multi sheet formats with an extensive title block on the first sheet and a simplified title block on the subsequent sheets. The drawing template only has one sheet but if you add additional sheets in the drawing it correctly pulls the simplified format. I have separate templates for A0, A1 & A2 sizes in both inch and metric units (6 total).
The only parameter I have trouble with is &todays_date. It used to reside in the format and was evaluated at the time of drawing creation. Pro/E always wants to evaluate it at the time of drawing template creation. I ended up just putting a string of dashes as a place holder in the template and the draftsperson has to change it when the drawing is created. We have a mapkey that changes any text string to &todays_date which is convenient but you have to remember to do it.
In Reply to Stefan Mueller:
When creating a new drawing, we currently choose a template (inch or metric), which opens the drawing with the rectanglular border. The drawing is then created, and at some point add a format gets added to it. The title block info is driven by part parameters and the drawing rev and release level is driven by Intralink. We plan on having the same setup when moving to 9.1
An option being considered is to combine the template with the format so that the format comes up and doesn't have to be added. Is inserting a format after the fact poor practice, or is it more flexible?
Curious as to what others are doing.