Be very careful: the brain never gets in the way of the hand, it's the reverse, the hand gets in the way of the brain, and focal dystonia may result. Make sure when doing this that there is no excess tension in the elbows, wrist, or shoulder. When we learn to play, we are teaching the brain, the fingers will do what the brain learns. If we force the issue, the brain eventually becomes confused on the cellular level and rebels, taking away your many hours of work.
Mindful, focused practicing only needs a few minutes daily on a particular technique to achieve constant improvement. Practice as perfectly as possible to build a perfect technique, never play faster than you can in full control of each movement, until you have made the movements very natural and easy, then the speed comes on its own. Do not mindlessly repeat; keep your focus and repeat a movement for a few minutes only, then on to the next one. This is how John Williams learned, and how he practiced his whole life.
Lester Devoe Flamenco Negra
Lester Devoe Flamenco Blanca
Aparicio Flamenco Blanca with RMC pickup
Bartolex 7-string with RMC pickup
Giannini 7-string with Shadow pickup
Sal Pace 7-string archtop