Honestly, the slop, as much as it can be, is not much, so 99% of the people out there would probably not be able to tell the difference. A little slop never hurt anybody anyways
I am gonna try both the set-screw mod and the super glue mod this coming week and try and see if there is a noticeable difference in feel, and laptimes. My gut feeling is that it won't make a difference that is truly quantifiable. I have seen very comparable amounts of slop on other vehicles, such as the XRAY T3 and it never did make a difference that was noticeable while driving or in lap times.
With that, the super glue mod that is described a few posts back is not very hard to do, nor does it take a lot of glue. Just a little dab of thin CA should do. CA Does not penetrate the aluminum, so you should be able to remove the block without much effort if you use "just enough" CA.