That is good advice gcoe.
Might i be so bold as to also suggest that in addition to having a movement impairment syndrome, he might also have overactivity in certain muscles - so not just lengthening the short muscles, shortening the long, strengthening the weak etc but also relaxing the overactive (no doubt global muscles) and increasing the activity of the underactive.
Otherwise i agree totally (for what it is worth!)
CHeers