Sorry, I haven't and don't have any plans to. The engagement point on the clutch seems very consistent so I don't see it getting need. This was almost a required mod on my previous car though.
Have you actually seen the need for this on your FL5?
I am more interested in the Sirimoto clutch master cylinder kit, which uses a Wilwood unit with a custom fit bracket. I haven't seen it yet, but apparently the FL5 has a plastic clutch master cylinder. When people attribute 2nd gear grind to the CDV, they are showing that they don't understand what they're talking about, it only works in one direction.