I have poked around the forums/kb's but not found the exact answers to the following questions:
Thanks in advance for the replies...
1> yes you can upgarde to MR6A & then immediately to MR6 MP1
2>The deploy will be in tow stages
3>Yes the reboot will be needed if you have NTP installed.
4>It would be good to from 10x to MR6 MP1
Hope this answeres your questions