One questin, and I'd guess I know the answer...

Vet1->Raf1->Raf2->Raf3->Raf4

Level all 5 to 61, giving 30 levels on Raf1-4.... Raf4 grants 30 levels to Raf3, Does raf3 now have 44 levels to grant?(14 + 30) to Raf2, if so does that carry on giving Raf2 51(30+21) levels to Raf1 and 55 (30+25) to grant to Vet1?