Got one of these loopers https://www.mymemory.co.uk/digitech-jam-man-solo-xt-memory-cards-and-accessories.html a few months back, and being an old fuddy duddy, am wondering about which memory expansion card to get (takes Micro SDHC cards up to 32Gb storage) What would a good but basic threshold for Class? read/write speed? (of decent quality). I realise its a matter of faster = better, but I don't want to spend more money than I have to. What cards are people using?