Just updated to A55 firmware on one of my VTX10r's. Having also fitted the larger power capacitor. I'm expecting good things from this speed controller now.
I had almost given up on any V link profile editing software becoming available too, so much so that I hadn't bothered to see if it was available having waited so long. But I now see it has arrived, and it seems to work nicely. I'd purchased my V link ages ago, did one firmware update, then it sat in the pitbox as it had no other use. Better late than never though I guess.
I'll be happy if all goes well on track now.
Would be good if you could get some 4wd off road set-up sheets on the site though, any chance?