Acid techno is one of the few scenes which still believe in the value of vinyl records. There are so many limited special editions, coloured records and secret tools out there to play with. But in the modern world of CDJs and controllers, how easy is it to play these records in a mix? Charlie has been practicing all week with his music collection to put together a mix on his two creaky Stanton turntables and the Allen & Grief mixer. Will it sound good? Will the beats be matched? And has he got the record on the right speed...