"muscle memory" is really just the brain's natural aptitude for recognizing patterns, correct? it's not muscular so much as neural, yes?
so... honor that for what it is, i'd say... and bring the presence of one's conscious mind into the mix so one isn't always reliving the past, but expanding into new patterns.
same thing in life...if we don't bring the presence of our awareness into the Now, we're just living the conditioning of the past. but that doesn't mean the accumulation of learning, understanding, and experience gathered up til that point is invalid or non-existent. just a tool... for More.