There is no point of such "tactic" since it is all RNG.
I usually buy all the chips that i need and enchant them one by one cuz i know it is guaranteed that one of them will brake at some point. Then just rebuying the ones that broke or got enhanced to lvl 5.
I think he recommended me something like that because he knows I'm crazy and I'll almost certainly create at least 2 sets per chip.
At first I did not think there would be any extra chips left, I trusted what he had told me since it was the first time I tried to get a Chip Set.
By the way to get the complete set was very quick (except for the special...), I will have spent about 1 and a half hours per set (while I was studying among other things ...).