The picture of the grounding block on the battery looks great! Any benefits to this design?

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The grounding block is also used on a couple other designs like HKS, and AroSpeed. It's mostly for show, depending on which Hyper-Ground theory you subscribe to. The problem with a grounding block is that it adds a poor conductor into the mix, usually aluminum, which can add noise signals to the ECU. One poorly designed commercial kit even anodizes the block a pretty blue which make it an even poorer conductor, and uses cheap tinny lugs! Looks good though, so if looks are what you're after, it may be an option.

I've done testing with GroundingGear™ on BMWs, and interestingly, the performance gains are had by carefully determining underhood engine/chassis ground points and no grounding cable is required to go all the way back to the battery negative in the trunk! Same with the Audi A8. Your pic shows the block as being attached to the neg terminal which from testing, seems to be one of the least important.

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