Design question/confused

Ok my design are on 2A,B,C, etc... its also taking me 60 designer to get one design to level in one day... also im only getting 2% for this and next season..

Now my brothers account..  he's design are on 3A,B,C etc..  for him to level desigin in one day, he has only 35 for one design . Also hes design are going up by 3% and 5%.

why is that? when my designs are lower but taking more then hes design when they are higher?

3A, B, C etc or 2A, B, C, the number only indicate the season i.e. if its ur 8th season, ur components will be named 8A, B, C etc. it has no effect on design, just a numbering system if you like.

Reason why ur only getting 2% for next season is probably because ur components for the current season are very high

oh yes i know that it means the season i was just giving the example... but ok thanks

Basicly designing a 100% car for next season will hurt your development during that next season. Don't know exactly where the tipping point is but in my experience designing to 70% is very well possible without hurting development. Might as well be higher but never tried that.