Use of Furled Leaders

[Steven]

I just purchased a package of (yellow thread) furled leaders for a 4 weight rod.
They're 7' long so I would add approx 2'-3' of tippet.

Question..if one is dry fly fishing in very clear water to wary trout, wouldn't the leader spook the fish as opposed to a regular 9'-10' mono tapered leader?

Last week, my son and I went double digits fishing dry with an Airflo poly leader - I think those things are even thicker than furled leaders.

If fish spooked every time something hit the water, they'd starve.