@Skeeve
Pretty nice flight actually. Took off 0600UTC, landing 0720UTC. I cruised at FL120 and I got more or less direct route shortcut.
As forecasted, there was an overcast at 500ft with tops 1500-2000ft. then there were some scattered layers between FL080 and FL110 These were not on the ogimet but flugwetter.de had these on it.
Also, as forecasted by flugwetter.de, and late on Monday evening on a new gramet, between Osnabruck and Hannover, I got some TCU. Overcast around 1000ft, low vis and some towering up to FL130 but there were only 2 TCU in vicinity and 1 large TCU in the far distance (easy avoid) so I got a vector which passed a TCU but no problem.
I think the gramet is pretty good, also it predicted TCU until FL100 in arrival in Antwerp which was spot on.
So if you take into account the gramet and then another source of forecast and both are pretty good for your flight, there should be no problem
