You mention
He might not have ever had strength. Can you tell us how old this client is and what their base level of fitness is as this might direct our starting point.
I suppose the high tone is perhaps due to weakness in other areas causing some increased activity in other areas. Look at what has higher tone and try to think logically what things might need strengthening in order to take "the pressure" off the over active area. Time would be better spent on address those areas (whether antagonisits or synergists) than on releasing higher tone structures that are likely to return to that state time and time again. We look forward to further comments. 8o