How to start a new design - best way (incremental compilation)

Hi Darkwave, just a clue for you, not aiming to answer all your questions unfortunately.

I never worked with incremental compilation but a few days ago I've been told that it is not possible to work with incremental compilation if you are including IPs in your design (e.g. FFT, FIR filters, etc.).

I did not check if this is true, so I'm just telling you what could happen if you are using IPs.

If someone else has some more precise information about this topic, it would be very useful for everybody.