Our OT has done finger tapping as part of the battery on both children. Interesting, I assumed it was part of the standard battery they did (California something or other?). He was quite insistent that my 2nd child is exceptionally well integrated, nothing more than low tone and hypermobility at work, and in fact that the only reason she wasn't more disabled was the degree to which she could compensate. I have worried sporadically about whether he was missing dyspraxia or dysgraphia (she just got an A for the participation/behaviour parts of PE and an E for the actual physical skills). But she did exceptionally well at the finger tapping, the OT seemed to find it highly entertaining actually. Also all the posture copying (he would pose himself and she had to copy a mirror image of his pose).