The problem with long periods of no practice is that you think you are doing great, but then realize that your technique has atrophied.
"You can't gain mastery unless you can do slowly what you now do at full speed."
"Now let the tool do the work. The edge is sharp. All you have to do is guide it." That was me to a student at the WoodenBoat School years ago. More recently, sensei said to me, "Lou, the sword is sharp, let it do the cutting. All you have to do is guide it." …
Practice makes perfect is not a trite truism. Depth of Practice is important, and it can be applied across disciplines.
Success is not a permanent achievement. We have to continually work at maintaining it.