Maintaining a training regime of double sessions (one regular dual n-back and one “nines”) is still proving highly effective. It’s tough to dedicate the amount of time required, but I would highly recommend this as a “booster” training approach. Averages have been up in the high 8s (much higher than when I was just doing one session per day), and today I scored a new high at “nines” of 9.65…
Brain Training With Nines - Session 48