It is true players do not have sufficient competitions. Hence lack practise which might be also one of the reasons why the Standard of the Singapore open Top 4 is not as strong (relative to the past). Opening is important especially if you meet highhands. For players that are more evenly match it is also important but not as much.
For Ruizhan's game, i felt that it was lacking in certain areas (already elaborated in chinese). Well, i'm not saying that my skills and tactics are excellent. I'm not sure if people agree with me but thats how i feel. Hope my feedback could help him do a little reflections. Thank you