actually this is a very good time in his age, i am the same age with him..=)
If he 參加新秀賽, i think he MUST get a prize in the competition. This time is very fast,even in division1 and division2...for info. ,go to
http://www.hkasa.org.hk/ag_index.html
Tell him to improve the skills by practising the following things:
For fly:
Get a kick board and do butterfly kicking for 500m Do left hand/right hand to practise. For Freestyle
Do kicking do pulling do left hand/right hand to practise do some 閉氣 to get the 內力 better there is some video....
http://www.daodaodao.com/swim/html/2006/65.htm