My bad days were at the NSW titles when i had driven about 900kms to race at the titles and in 2 days i only managed to finish 4 races.
This was due to radio problems.
The fact that it cost me about $1000 to go there just compounded the problems.
SInce getting home to QLD i have found out it was my receiver was too dirty and the wiring on my speedy wasnt up to scratch so its getting fixed now.