I have been hearing good things from the HD500(x) however I have also heard about a noticeable lag when switching patches. I have been looking at getting one of these but I fear too much of a lag would be a deal breaker for me as I would intend on using it live. Could someone please post a video of said lag? That is play a chord, let it ring and switch patches a couple times, maybe with varying effects and even the exact same patch would be cool. This would be greatly appreciated.