When you want to learn a flamenco piece from tabs or score it is very important that the transcription is accurate, and that the correct fingering is included. Otherwise you could be trying to play something that is not natural. Many existing transcriptions are not very accurate which makes it difficult for a student to learn to play the piece from the score. Most accurate transcriptions are the ones that have been made in collaboration with the artist himself or done by an experienced guitar player who is able to play the pieces himself.