Randall RS125XL Cab speaker change

[rbailey1010]

I've got a Randall RS125XL with two Vintage 30s and 1 15' Eminence Legend. I am considering swapping one of the Vintage 30s for a G12T-75 for a broader range and to balance the mid spike that V30s are notorious for. Any opinions on this considering its two different speakers on top and the 15 inch on bottom......I personally think it'll sound kickass but I'd like some input from you guys

Thanks