I thought I would add some personal experience in case it might help some RV-12 pilots.
I know it is not part of the POH, and it is a bit counter intuitive, but I have found that raising the nose wheel as soon as possible provides better rudder control during crosswind take offs.
As with all airplanes with clockwise rotating propellers, a left crosswind is the biggest challenge (torque already turns the airplane that way, weather vaning into the cross wind makes it worse.) 100 HP is a lot of power for an airplane that weighs 750 lbs or less empty. The torque turn to the left is a factor with left cross winds. Because no power is applied during landing, there is ample rudder authority (even in a left cross wind) but you need to use care applying power while aborting a landing or doing a touch & go.
For every takeoff I hold the stick full back, and add full power. Reduce stick deflection as soon as nose starts to come up, so that nose wheel stays 4-6 inches off the runway. Let the airplane fly off when it is ready.
(A demonstration of what I consider good take-off and landing technique for any tri-gear RV can be seen in the first 1:30 of THIS VIDEO)
I have found that if I use this technique in a strong crosswind, the moment the nose wheel leaves the ground, the amount of rudder input required is reduced by about a third. In a 15kt left cross wind, it makes the difference between full right rudder and dragging the right brake (and extending the takeoff run because of the dragging brake), or using 2/3 to 3/4 of the available rudder input and no brake.
As already mentioned... the airplane is very capable, but the pilot needs to be equally as capable. New RV-12 pilots need to learn the airplane, and work up to these type of operating extremes as their skills develop.
I found this old post by Scott from back in 2011. Back then, and still deep in the building process, reading the quoted post was interesting, but I didn't really absorb it all. Now, three years later, and with a little over 40 enjoyable hours in my RV-12, I'm working to sharpen my crosswind skills. A review of this post from Scott, watching the video again, and then getting a little stick time, has had some very positive results on my skill set. I'm sure that it will do the same for you. For those who haven't seen the video, do yourself a favor and view it. Then, go out and fly! Thanks Scott!!
Tom