ALG's did not change. The amount of Training Points you get did not change. The max level your dot can be did not change. The total number of boosts you get did not change. Training gain adjustments did not change.
In short, nothing besides how FAST you can now take a dot from start to finish is one of only 2 real changes to dot building. The other is now WR's are .4 ALG dots instead of .5 which also has yet to see what major differences that causes.
Many people are on the 'boost early and often' train. I am not.
Several well known dot builders are even NOT boosting early.
I am in the middle, basically figuring if nothing changed... then those "old guides" might not be 100% in line with the sped up growth timing and such, but there was a reason that for 90+ seasons people did NOT boost early and often and those guides were made based on that logic. So their logic is still sound (IMHO) but their timing is now off.
While we're just a short hop away from seeing ALL dots (created after the crash) at level 79, I can already see the gap between early boosters, old school boosters, and non-boosters is closing rapidly and, in some cases, EL's are starting to favor the non-boosters more and more. I suspect new "guides" will be popping up after we all reach plateau this (next) season.