If it's NiMH, I wouldn't use the discharge. If it's NiCad, sure. There are no 1700mAh mini (2/3A) cells, so either you're not using a mini or you're wrong about the capacity.
Your routine is not nearly strict enough to encounter the actual, serious "memory" effect. Really, the only time it's ever been observed is on satellites, which draw a very exact amount of power for a very exact amount of time before they're recharged via their solar cells.
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