So far weather looks good for Saturday meetings in both Rybnik and Tarnow but Sunday does not look promising so far hopefully it will change rain in forecast for Poznan and Torun.
Crash just like that one happened once in 1995 during WTC at Bydgoszcz where P.Karlsson run into T.Gollob after Gollob had engine fail,Karlsson fractured his legs in that one if I remember correctly i don't remember who got ex thou
https://www.youtube.com/watch?v=lDi80VP98eE
When i went to Poland last year i just bought the tickets before match at the stadium i arrived maybe 2 hours before start and wait in line to get it was short basically arrive early is my advice.