I lost all the early engagements because the game had a slower reaction time than usual, not sure if it was due to ping or cpu (probably both).
So in the end I tried to play like svatopluk, but I failed.
About the mason or scorchers first: i used to make a mason before my scorchers, but I found early game eco didnt support the BP and Some scorchers to attack or defend are more usef. I did'nt want to rush out scorchers because I wanted to spend as mush resources as possible on eco with my com.