Now I am new to the iPad and due to forum rules I wont name the site ..... I was one of 2 guys that came up with the ability to flash your boot to be able to use spirit way back when, when they updated to give users the ability to continue using that JB. Until I jailbreak my ipad and get into the root I can't say for certain but im pretty sure it is very similar to all the other ios's for the other devices. Its the hardware on this damn machine that is making this so difficult!!
I will add that I in no way have anywhere near the skills and ability to do what these guys do they are brilliant I have just learned from what they have given us.