Siku did not tell you must not chill, he wrote you do not necessarily need to. Tables are already a selective exercise, an abstraction, serving for training either specifically hypercapnia, or hypoxia - that's their main training focus. Their purpose is not simulating a real dive, but rather helping you separating individual effects of a breath-hold, and learning to cope with them. So of course, you can chill out before the table, but the effect will be that the first hold(s) will then feel easy, and it will get harder and harder as the chilling effect vansihes. And that's not really very helpful, because it then messes up the system - making the beginning too easy, and the end too hard.
There are also exercises for training the "chilling" separately from others - making repeated holds until the first contraction, trying to prolonge the comfort phase. And if you want to train all aspects combined together, you simply make max holds. No need for tables then.
There are also exercises for training the "chilling" separately from others - making repeated holds until the first contraction, trying to prolonge the comfort phase. And if you want to train all aspects combined together, you simply make max holds. No need for tables then.