While I haven't known anyone specifically to pair the Thrash Factor with the Sentient, I have known a few who've paired up the JB and the Sentient, which for all practical purposes is about the same thing really. Seems like the results were satisfactory, said the Sentient gave them a tone that was a bit less mushy than the 59 but a bit more full and lively than the Jazz. I think especially if you're looking to get something along the lines of a modern metal tone happening, the Thrash Factor and Sentient could work out ok?