Watch the Major Scale Form II 7 online guitar lesson by Brad Carlton from Guitar Lab: Caging ii V I

This lesson gives an example of a two voice outline for the I chord in the key of F. Example 26 demonstrates this with the root of the chord being played on the fourth string and the remaining chord tone options being played on the remaining three higher pitched strings. This can be clearly seen by looking at diagram 29. It is absolutely critical that you know your arpeggio in this manner.