ORIGINAL: britbrat
the 11-6 will likely lower the landing speed, but the 10-8 will actually increase the landing speed, and both will absolutely kill take-off & climb performance.
very much so, I wouldn't actually want to put either of those props on an LA engine. Master airscrew 10 X 6 and learn to fly it.
different makes of props will affect it a ton too. APC props work great on my wild thing, where master airscrews make it just a dog. Masters do work better in a lot of situations. All in all, you won't notice a huge difference on your plane unless you just pull the power back.