To answer your question, not personal technique.
The donut is accurate for its purpose of REFERENCE only IF you have your flight plan properly sequenced. If you do that, it will give you a very good general idea of your descent PATH to the RWY.
Now, nothing prevents you from inserting the ILS APPR for a visual approach if available for a more accurate reference.
A visual appr is just that, visual; but it is nice to have this tools available.
G