I enjoy reading threads about the T5 because I have one. I know, like it has been stated so many times before in many threads that it is not a Les Paul or a Strat, but I feel that is the beauty of the guitar. You can obtain such a wide array of sounds from it. I know many guitarist that will only have a Strat, or a Les Paul, or some other guitar who indicate "this" is the only guitar a guitarist needs. For each of them, this means they are favoring the tones produced by that guitar. I love each of those guitars and what they bring to the table, but at the same time, I love my T5 and the possibilities it gives. For the record, I had a Gibson SG that I gave to my son or else I'd still have it (loved playing rock on it). I am waiting to get a Strat now because I've never owned one and I enjoy what they do. I have many friends with one or the other of these two guitars and they are great guitars.
With all the above being said, I've used an ABY box with my T5. I've only ran it through an electric modeling amp and a PA. Sometimes I have used the one amplification source alone and at other times I have used both together while playing the T5. It basically depended upon what songs were being played at the time. My setup is simple and has worked well in the past. The style music I play when using this setup is gospel.