Spiritual Master and Kung Fu Master perklines
First of all: Excellent guide! One of the better prof-guides on this forum, no doubt! And here I go in an attempt to further aid in creating and playing a MA:
Don't know if this has been said before in this thread, but I think it's important to add some information regarding those two perklines, or more specific: How they rely on eachother, or more specific how the specials you get when you train these two lines are dependent on eachother.
The last two specials you get from the Spiritual Master perkline (at the 9th and 10th point spent), Flesh Quiver and Obliterate, need the special Tremor Hand from the Kung Fu Master perkline to be running.
Since you're unlikely to find yourself in a team with two MA's it might be wise to put points in both of the mentioned perklines. The specials from SM is quite excellent and Kung Fu Master is only five points, and you only need to put three in the perkline to gain the Tremor Hand special.