l have for two years a POD HD500 and the last flash memory I have installed is v.2.10. v.2.20 had not interest for me, so, I didn't installed it. Now, Line 6 appeared with the v2.31 flash memory, including proposing the exchange of v2.20 to v.2.31. My POD HD500 works fine with the flash memory v.2.10. So, what I do?? I Keep the flash memory v2.10 or I exchange to v2.31?? There would be some advantage in this exchange?