You should consider using qualifications / simplifying the requests. The error rate I get for data entry tasks is around 0.5%-1% discrepancy between double ent

You should consider using qualifications / simplifying the requests. The error rate I get for data entry tasks is around 0.5%-1% discrepancy between double entry. If you use prior reliability of the worker to tie break between who's right it drops to <0.1% error rate.