Hey Nat, thanks for your advice 
My saves usually depict my workflow. The project with all raw files, first step is to make a rough cut, remove everything that´s obviously not wanted and order the scenes. Those saves I usually name "project_rough_01".
Next step is to watch the whole thing, delete and shorten clips, rearange a little and eventually put some text in. Depending on the length of the raw material, I sometimes end up with LOTS of cuts.. Saving name is like "project_cutting_01".
Unless I have messed up my work and wonder what the heck I am doing, I usually do one last step, adding Intro, editing sound, adding music, maybe some more ticker text and an outro.
In this case I think I have worked too fast for the amount of cuts I´ve made. VP seems to need some time to "settle" between certain steps? I have worked down raw material with some 3 hours down to about 8 minutes, maybe that´s too much and I should split a big project into 2 smaller ones? Do you have experienced similar situations?
I have still to figure out the traps and *dont´s* of VP, but overall it looks like a solid and stable piece of software.
Thanks again for your reply 
Regards
Udo