Uncut tires on asphalt

[thunder938]

Ya the FEDs do change more than the BFGs did and I also found them getting tight on a long run, but it was sure good for 90% of the race.  I found that I was able to steer the car in the corners, cut down in the center and power off with no getting loose.  But they do and will get tighter as the race goes on

[Rcrguy24]

When are you asphalt guys seeing the most speed out of the federals?  I have 2 new sets of cut tires, but the used set i'm running now still have some life on them and so I'm just kinda curious if you all that have more experience than me noticed a "prime" period for the feds? Thanks
Joe