This really depends on the person. I've taken EQ or deca and saw improvements within 1-2 weeks. Past 8-10 weeks and I see little to no benefit of staying on no matter the compound.10 weeks is too short to run something with the Undecyclenate ester, which has a half life of ~14 days.
A general rule of thumb is that it takes 4-5 half life's to reach steady state blood levels, in this case 4x14=56 days or 5x14=70. This means that it takes between 8-10 weeks to reach optimal blood levels for growth.
This means you would be, essentially, spending your entire 10 week planned cycle letting your blood levels climb, only to then stop and let them start declining. 16-20 weeks is optimal when using Bold U (EQ).
The idea that someone goes from 0mg of something and then put say 500mg in them and it takes 8+ weeks for it to "work" makes no sense. It starts working from the first shot. To what degree is highly individual. It's worth making the distinction IMO.