after looking around for a while, there is only one company that makes a slider for the shifter side of the genII R6. it uses a compression bolt that doesn't instill my confidence in crash protection, so i decided to make my own mounting system.
this is the pivot bolt with clutch slider assembly for reference. the standoff just screws on in place of the pivot bolt nut, then the slder bolts to the standoff.

this is the end of the pivot bolt, a 12.5mm hole that traverses the entire length of the bolt. My intention is to thread this hole with either 9/16"x18 or M14x2.0.

now shown below is the shifter slider equivalent of the clutch slider. However, I have not included the means by which i'll attach the slider to the pivot bolt.....which is my dilemma.

after discussing it with the machinist that is making me parts, we decided there were 2 ways to go about it.
1. use a piece of all-thread and thread into the pivot bolt once it's tapped. the stand-off for the slider will screw onto the all-thread, then the slider can be bolted to the stand-off.
2. machine the stand-off so that its essentially a spacer, i.e. there will be no threads in the stand-off. The slider can be drilled with a larger hole to accept a bolt that will go thru the slider, thru the spacer, and into the pivot bolt.
I'm all for #1, the machinist is all about #2. I believe that #1 will be stronger to withstand a large force during impact, but #2 is much easier to machine and assemble. of course, the ultimate objective is to protect the bike.
which brings me to my question: which method would you argue for and why?