Greg Valentine/o -- used prop.. not synthol...
That being said... I have mixed opinions on the matter... On one hand, I think there can be growth locally... however, it must be done over a period of 6 months or longer (to achieve any permanence in the method frackal suggested)... on the other hand, I think it hinders strength in the muscles... it's a rather lengthy reasoning, and it is quater after 2am here... perhaps I'll get into it tomorrow.
C-ditty