Can you make a video of you getting the PIV out in 9-12 minutes, I just tried a game just now and had 1 fuel cahce up and it still took me like 14-15 minutes and other guy had 2 T34s =/ . I had to back track and get At guns.... Please help me fix this otherwise I think its little unbalance... The T34 and Sherman are already better tanks.
I usually don't play a fast P4. I only do when I am really sure that I dominate the early game and 4 grens + mortar is my usual standard build. Skipping T2 requires at least 50-70% map control in the early game and at least one fuel point (better both). An additional fuel cache is also nice.
Then you can get out the P4 at the mentioned time.
This build is not very functional, it's more to end the game very fast because of your overwhelming dominance.
A fast P4 is not a suitable option in even games.
In short: You have to dominate the game for a fast P4 to work. You need good micro and unit preservation.
Your problem is probably not the time when the P4 arrives but the early game before. Concentrate on keeping your units arrive and learn to use PaKs. The P4 will just roam the enemy for a few minutes until his own tanks arrive. And then you need PaKs or Panzergrenadiers in every case.