To each their own I guess.
Chameleon or XL for leader material? Neither would be on my list at all, let alone in the top ten. Clear water conditions call for a better solution than dropping to 8lb test in my opinion. In the winter- why tie leaders with separate materials for differing water conditions? Why not just prepare for the worst and be ready for anything. A less visable leader can't hurt and for me the minor additional expense is not a factor.
I used to run straight 12lb test- Riverline to a Ultragreen leader. The Maxima ALWAYS broke first. (Ultragreen is very consistant- I have never had a bad batch)
Now, with 17lb Stren FC I have exactly the same results regarding breaking stregnth and better abrasion resistance with a less visable leader. And why would the leader being stiffer be a problem? XL would be the problem, it is way to limp for leader material and has no abrasion resistance. Chameleon sticks out like a sore thumb. You may catch some fish advertising like that, there are suckers in every population.
Lastly, the benefits of flourocarbon is self evident. Who cares what it looks like in a glass of water. As scientific as that sounds, I wouldn't consider that a fair test at all. Run your gear beside the boat and see for youself. Ultragreen is visable and FC looks like your offering is magically suspended.
All I can say is that it works for me and this board is about exchanging ideas, right?
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In the legend of King Arthur, the Fisher King was a renowned angler whose errant ways caused him to be struck dumb in the presence of the sacred chalice. I am no great fisherman, and a steelhead is not the covenant of Christ, but with each of these fish I am rendered speechless.