  Sco X-1 is a low-mass X-ray binary (LMXB) that has one of the most precisely
determined set of binary parameters such as the mass accretion rate, companions
mass ratio and the orbital period. For this system, as well as for a large
fraction of other well-studied LMXBs, the observationally-inferred mass
accretion rate is known to strongly exceed the theoretically expected mass
transfer rate. We suggest that this discrepancy can be solved by applying a
modified magnetic braking prescription, which accounts for increased wind mass
loss in evolved stars compared to main sequence stars. Using our mass transfer
framework based on {\tt MESA}, we explore a large range of binaries at the
onset of the mass transfer. We identify the subset of binaries for which the
mass transfer tracks cross the Sco X-1 values for the mass ratio and the
orbital period. We confirm that no solution can be found for which the standard
magnetic braking can provide the observed accretion rates, while wind-boosted
magnetic braking can provide the observed accretion rates for many progenitor
binaries that evolve to the observed orbital period and mass ratio.
