Well I am running a forum Grasshopper Network: http://grasshoppernetwork.com for about two years. I have been running the forum with MyBB. I have been happy with MyBB without issues. But I am finding it is generating too many queries and are not optimized. So I want a migration from MyBB to XenForo. I have few questions before Will the transition be smooth? Will XenForo executive help for migration? What is the payment mode?