I do all of that by feeling, common sense and carbon assembly paste. With that the torque needed is reduced a lot, in some parts even like 30% less torque is needed. So why you might need a torque guide, even i been noticing that it depends on the manufacturer and their tolerances the torque you have to put in some parts, between you and me i dont believe them too much because if the torque wrench is not calibrated then the danger of overtorquing something is pretty big. And believe me i have seen it with one of my friends, he called me panicking because he messed up one of his carbon stems, his trustly torque wrench was bad, a bolt went bye bye.

Well good luck just my experience over 30 years working in my own stuff, i dont know it all but so far never snapped a bolt or messed up any of my carbon bikes and parts because i went HULK in the tools, I'm just carefull