...it happens something to me i can not explain..i use to play solos from metal bands..like iron maiden..judas priest..e.tc..Well i play one of these solos for 7 days(3-4 hours a day).but i can not play it like the band..i mean in the same speed..so i'm getting sad..and i do not play it for 10-15 days..then i play it again and i can play it like the band and i feel very comfortable..Is that a usual fact..or it happens only to me??????