When you are used to playing the major scales,pentatonics slowly all over the neck...Imagine a chord progression moving over definite intervals like ay Fm7,Gm7,Am7,Bm7,C#m7, Ebm7,Fm7....take a device like the minor pentatonic in the root key of each chord and play fragments for say 4 bars before making the shift. To make it super smooth play all the different pentatonics in the same position. Its the lateral displacement along the neck that makes the registers jump drastically. So try playing all these ideas in one position.Then repeat the same in another position and you will discover some really cool transition lines.As usual please plot the pentatonic scale on the neck and learn them all over the neck it will free you of stress :). Do this exercise up a half step i.e. F#m7,Abm7... and you will have done all the 12 minor pentatonics known to man,simply and painlessly. After this, make music on the progression to avoid sounding like an abacus :)