Sorry for leaving out some details, i'm experienced with the B4 just wanted more opinions on what to try next..My diff is butter smooth with sanded rings and carbide balls, newer outdrives, slipper isn't too tight either. I do need new rear tires soon and can try a softer compound front(good idea there, i have almost no front tire wear). I'm running 2 washers up front and 1 rear(.030" washers). I will try the A hole on caster block and leave it inside on tower up front, probably leave the rear alone and get new tires. i'm running the GPM aluminum steerng rack with no saver, the flat bar is getting sloppy so i might replace it with the AE plastic piece while keeping the upright parts aluminum. Shock positions are inside on tower front and rear, outside on front arm and inside on rear arm. I tried outside on rear arm with nothing else changed and i liked it, but the car drove like crap without copious amount of traction compound(i use sticky fingers), or when the sauce wore off. I'm usually a top 5 driver but this week went to a new track and did terrible, the car just wasn't there. When i run the normal setup for our track it doesn't have enough steering, just pushes too much so it's hard to improve on lap times and hold the right line. Thanks for the tips though, i'll try a couple suggestions today. Also running the battery in the middle position. Is anyone else running the rcshox dual stage pistons in the buggy?