Thanks for your reply, I guess my post was confusing because of my poor english.

What I want to do is : I have 33% now and I want that 33% = A% + B% + C%

A% I keep it B% repurchased now C% repurchased later (after funding round for more valuation)

We all 3 agreed on this scenario and I wanted to have the good amount for A, B and C.

We are friends working together so we didn't agreed on a vesting schedule, and we worked without salary, and we each invest 10K to launch it.

I know that A% will be a dead weight, I got other advises saying 10% is too much, I should keep 1/4 of my 33% = 8.25%