You should check the toe while the car is on the ground. Preferably after you have finished your setup on the car, ie. weights, ride heights, etc.
You are correct in that there is "bump toe" and its actually called bump steer.
Description is "borrowed" from Steve Smith's Paved Track Stock Car Technology.
"Bump steer is the change in steering angle of the front wheels caused by the front suspension moving up or down through its travel. Bump steer causes the introduction of toe (either in or out) into the front wheels when the suspension goes into bump or rebound."
There is more in the book, but I'll stop there, there's tons of places to look up more information if you want it. Bump Steer is important, but has a lesser impact on the car than alot of other adjustable tuning aids on the car. Focus on the basics like squaring the rear end, ride heights, corner weights, proper spring rates, caster, camber, and toe (among others) and develop knowledge on these basics before you put too much investment into changing this.
If you had someone you trusted that could provide chassis consultation and basically walk you through an indepth set up on your car it may help you. The numbers may not be correct, but if it helps you pick up the adjustments any faster it could save you alot of time and aggravation in the long run.
Otherwise, we'll continue to try and help you here!
John