so you added 1/2 and 3/4 times

maybe its a go idea to go even further. i mean for example time controls like 1(m)+1/2(s) or 1/2(m)+1/2(s).
what do you think?

Yes. Might be cool.
¼+0,
⅓+0,
0+½.
As we see, new time controls are very popular. So may be there will be sense in creating even more short time controls.