What time control can be best used as an improvement tool?

Also, what can I do to better my tactics in general?

The slower the better

John Bartholomew recommends G/15/10 for online play if someone is interested in improvement.

60min. Learn to calculate methodically at 60
Then 50 then 40. Then 30.
But everyone goes 15 then 3 months later they are ready for ultra bullet... then post how can I get better? How not to blunder?

Bobby Fischer wasn't a calculation super hero in 3months yet 30million people think they can do it.

What is more important: today all games are recorded. So you can use them all for analysis or training purposes. Captain Obvious-but-not-obvious

What I'm thinking recently is that the appropriate time control depends on what kind of blunders you are making. If you are playing your a-game and the only way you can lose is getting outcalculated 10-moves deep or some incredibly subtle positional outplay then play a long time control. If you feel out of it and might randomly put your queen on a guarded square then play a shorter time control where you can shrug it off (it's harder to shrug off throwing a longer game imo). Also pick a time control where don't get flagged too often unless you explicitly want to practice your time management. Since I'm not playing so well at the moment I find 3+2 is good for me, short but the increment lets me have real endgames.

I have read how some people here play 20 to 30 games (bullet, blitz) a day, or more, and can't figure out why they are not improving. Gee, I wonder as well.

@MartinPlath said in #7:
> I have read how some people here play 20 to 30 games (bullet, blitz) a day, or more, and can't figure out why they are not improving. Gee, I wonder as well.

strange, I noticed myself significant progress in 2 years by only doing bullet blitz and rapid. it's a question of will, routine and effort

Ultrabullet @RomanFeoo

Grandmaster Jesse Krai of ChessDojo recommends 30+30