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i am going to mallorca in a weeks time.. but no I am sure they will be fine.
6800 front derailleur seems to be extremely hard to shift up. unsure what the problem is.. mechanic said the inner slightly fouled the tubing but it cant be that bad
edit: seems like it works way better if setup the old-school (circled) way and not the shimano "own" cable-in setup. other people seem to agree. guess it depends on frame
swedeee-
6800 front derailleur seems to be extremely hard to shift up. unsure what the problem is.. mechanic said the inner slightly fouled the tubing but it cant be that bad
Is the cable under heavy tension? if not, it should be.
Secondly, is the cable isn't in the way with the rear shift cable internally? put your finger on the front derailleur cable while shifting the rear one to see if it's coming in contact.
Lastly, the derailleur position can affect how it feel when trying to trim it (I guess that you find it hard to trim it without going up to the big ring?), usually you need to make sure the front plate is aligned to the chainring, however in some scenario you might need to move it a little.
Ultimately what I've found is that it varies on the frames and/or crankset, some shift great, other mediocre due to the chainset position, if the chainset is closer to the seat tube, it affect how it shift.
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I am going to mallorca in a weeks time.. but no I am sure they will be fine.
If you can descent comfortably without wearing in the rim brake pads on a big descent, then you should be fine with disc (i.e. don't drag it for too long).
edscoble
Unless you're gonna do some alpine descent anytime soon, I wouldn't worry too much about the rotor.