Not quite,
We're all talking about the worlds (CR) toe in blocks which are all 3 deg toe in. The 0 or 2 refers to the amount of antisquat the block has when the right way up. Personally becasue of my concern that a 2 deg block reversed should give 2 deg pro squat, for ease I always use the 0 block so it's easier to then washer up the front edge to generate antisquat as required.
The pips you trim off are very small, I wouldn't worry about tower height being effected, however becasue they are amall I wouldn't want them as the low face you clamp down hard against the chassis.
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