Ronald @ KD Sports. You can do a thread search about KD Sports, in the Marketplace. He's my go-to stringer. I've also heard of a good one at the USJ23 baddy courts.
-Ronald from KD Sports - Kota Damansara -A Guy from USJ 23 baddy courts -A Guy from Pacific Sports - Damansara Jaya -Heard that Stringing from Racket Zone at Puchong Bandar Puteri no bad. -also heard that stringing from Hock Eng Bangi also good and personally - Ong Beng Teong stringing skill also quite good ^_^