Hideeho
When I tried a full pack w/ my t4 I had to put it full forward to get it to turn which put the weight balance forward which caused a noticible nose down jump. With the full pack to the rear it pushed, but jumped well. If you only have full size packs, I would recommend try it in the rear & tune with camber links (roll centers & camber gain), & tires (rips & 3ds instead of scrubs/vectors & dd's) to get more front end traction. For my track I'm running vectors (aggressive) & dd's (w/stock &1 inserts) with the shorty slightly rear of center (2/3 of the total spacers in front). If you can't get the car to work with the full size pack, make sure you borrow a shorty before you give it up.

I also tried the new bb's for the race Saturday. I found a setup I liked during morning practice, but ran out of time to test everything I wanted. We had a small turnout for buggy so with only an a-main I wasn't real concerned about qualifying & kept trying new stuff. As a result I qualified poorly. The set setup I used for the mains was the afore mentioned vectors (aggresive) & dd's (green w/ &1 inserts) with losi red/white springs on the new AE bb's with 30/27.5 oil. To make matters worse, I got tangled up on the 1st lap & fell way behind. I worked my way back up to 3rd & was a turn behind 2nd (setting the top 3 fastest laps of the race along the way), when my battery dumped with 2 minutes to go. I put the battery that I used for the 3rd qualifier & a few minutes of testing before the main back in. Oh well maybe next week.

The good thing about the weekend was I love the new bb's & they work well with the same setup I used on v2's. I also found out I don't like pro line medium or AKA red inserts in green dd's but I love them with the &1's on my track.