There are some tires that are spiral wound, but the gyroscopic effect of how the tire is constructed is offset by the balancing. No tire on your car should cause a pull in any direction, given proper mounting and balancing. That being said, the best FE alignment is zero toe (see dcb's post above). Once the car starts moving, any suspension dive will result in toe-out, and the accompanying loss of directional stability. If you have the proper front geometry, this can be negligible, but unnerving. I recommend 1/16th toe-in as a minimum for experienced drivers, 1/8th toe-in for less experienced drivers.
FTR, I run my car with zero toe...
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