ah, correct. i wasn't clear about the frequency aspect. without the higher frequency at a training center it's more difficult to maintain your game over the long term. so far none of them have re-established their old level of play. plus, they all left at the top of their game while at peak age. re. lee hyun-il's comeback... though he knocked off the occasional top 10 player during his return i never felt he was a threat to win a superseries or sustain a top 10 ranking. but, when i saw him in a gp gold i considered him one of the favorites to win it. he was at the age where over training would yield diminishing returns. lin dan is currently struggling with that dilemma.