You're ok, drive the car.
When I host a seminar or a shop visitor I go into more detail about removing lateral play. One of the things I do with all TA setups is to parallel grind the bell spacer, start with a master shim I ground, then start to dial in the bearings- which is another process. When all is said and done, there is -0015" endplay, no lateral play, smooth rotation that will seat and loosen a very little bit once driven.
If you want to make sure you don't have a lot of lateral play just check the rotor at 3 & 9 for rock. If you can feel it move it has lateral play. If not and it's smooth, no binding, no free wheeling, you did a good job.
One of the reasons I never reuse the original shims is that I do first get the bell and shim parallel. If you look at the bell face you can see they are not flat and some are out 005"

 

I am a pretty experienced mechanic as well as being an Engineer to boot. I will try most anything but when I saw what was involved when it is done by a professional like GTR1999 I soon realized that something as important as the rear wheel bearings are just a bit more than I was ready to bite off. I removed mine in the fall of 1991 and sent them to Van Steel down in Florida where they were overhauled and given their million mile warranty. Both trailing arms were rebuilt by Van Steel as was the original steering box.

After buying my first Corvette I was up at Corvettes @Carlisle in August of 1991 and there was the aftermath of Hurricane Andrew which made it rain several inches in a short time. As I got onto the PA Turnpike I started to speed up when my Corvette started Crabbing down the highway at above 35 mph. Whenever I sped up the car would start to crab right away and when I slowed down it would return to the normal position. It scared the hell out of me and my wife so I drove back to my hotel at 35 mph in the heavy rain. That is what happens when you have a bad bushing or rear wheel bearing in a trailing arm. I drove home very carefully after the rain stopped and got home without any problems. Right after getting home I removed both trailing arms and shipped them to be repaired. The original parts were destroyed from sitting and then I started driving the Corvette regularly after it had sat in a barn for years before I bought it.

I wish I had known about you and your business GTR1999 as I would definitely send my stuff to you. You are a true professional and from what I have read you do awesome work as well!

 

Last one I did went to a bearing industrial supply place and got timkens was many years ago and here in Canada and they were much cheaper than any jobber or aftermarket place.