Dave,
At 4 7/8's the plane is so stable that it won't do waterfalls or fly inverted without pushing the stick tothe down ele about half. Not that this is bad mind you, I actually miss how smooth mine flew at 5.5 but the stuff you can do at 6 makes up for it. Mine walls VERY hard at 6 and that alone is worth it simply for the "WOW" factor.

Your going to like yours.