Superb coaching tonight with Grummeler!
Tough and very strong stuff but very, very useful and important.
Also, with the task given of change some date, it is very possible to do some great practice and good experience on that sort of math and calculations.
It seem that there is a real good guide line to expand a good study plan.
Thank you very much for it Coach and in particular, thak you so much for the extra time
you are a good man! TY
