Hi, I have four WS-C3750G-12S-S (IP BASE) - version 12.2(55)SE5 in stack. I would like to do mixed stack (platforms)and mix it with (one of below)a) WS-C3750X-12S-S, (IP BASE), I read in q&a that 3750-X will work if it is not 3750-X LAN BASE (3750-X ...