on 2018, I have a procedure for race start practice.
during FPs, always do all training prograns, exit pit, not flying lap.
1) when I have car control at exit of pit lane, I put car on neutral;
2) I press a buton on my steering wheel to change my dashboard ( I use SimHub ) to race start mode screen;
3) I Stop car a little away from pit lane exit, and rev up, change to 1st gear and start lap;
4) I do this in all pit exits and some tyre compounds;
This is best can do for race start practice.
BUT, in some case I have a little problem, DQ for blocking pass, 😂