Don't aftermarket links change the factory geometry. Nit saying the factory makes junk but nit all quads come optimized for a single purpose. Factory parts are usually a compromise of multiple variables. The factory eccentric link on the zilla imo isn't a good design since you don't see that design or variation of it any more and zilla swingers do like to crack. Brian metal tech swinger was riddled with cracks after little use. The other west coast swinger he has has the same issue.
I agree with u alky that you are"throwing darts..."with out some research ahead of time. Ltrs do handle much better than a zilla so trying to replicate that design isn't a bad idea.