I fished the SA Sharkskin in WF4F on a Sage 490-4 XP last weekend.
It is an excellent line, the noise goes away in 5-10 minutes and it makes much less noise when wet vs. fly shop parking lot/grass casting. The textured surface also feels different when wet.
The line does float higher and is easier to lift from the water surface.
When the water logged leader pulls the tip under, a quick wipe with paper towel will enable the tip to float for another hour.
I cast the line with emergers, nymphs & split shot and streamers,,,,,,it is a similar taper to the original Mastery Distance line (pre XPS GPS, XXD etc). SA will introduce DT, Nymph and other tapers in due time.
The line excells at mending and easy effortless pickup & casting, this is more important to me than distance.
Is the line worth $100 retail, for me yes, if it will give us 3x life compared to the other high end lines (presently at $65 retail).
Regards,
FK