On the plus side tho , i've been talking to the guy at the sales dept about tubes , n he offered the Gt12Ax7-c model instead of having to wait . But , i told him that im seeking better harmonics at high-gain and he said that i should stick with the GT12Ax7-m as they will offer what i'm looking for more than any other tube available !!
as soon as i get em , i'll post the review , but i VERY confidant that the Mx can perform even better at high-gain ( with GT12Ax7-m ) than with the standard tubes

Soon guys , soon ..... i hope