Started one week ago, currently on 1.5KYYY per sec including consultant, getting to the next stage is proving difficult! Need 100MYYY for last technology!
at this point i had hopped over to unlimited mode. started earning exp at a decent rate again. also consultant is only worth it for Saudi Fields.
Depending on play-style you may or may not get that last technology before completing classic mode. I don't recommend jumping to unlimited mode early. You may need to rely on some underappreciated specialists to get over this hump, but don't worry once completed unlimited mode speeds the game back up. - Moldy Games