Hey. I absolutely use IRs in addition to stock cabinets. The stock cabs do cool things with mic choices and early reflections etc. and something like a Michael BRITT IR can sound awesome. I regularly use both in a series. And feel free to swap em around. Remember, it’s all just tone sculpting, there is no right or wrong, but there is alike or not alike if you are trying to replicate a real amp. For instance, My high cut on both my IR and cab on my go to 65 deluxe reverb patch in helix is at 3.4 k. I set up an A/B switch with my actual vintage 65 deluxe and helix thru an alto 312. No effects just the dry amp sounds.It took about 3 hours of tweaking. But they are basically identical. Sitting side by side and tipped back right at me you can’t believe it’s really the original and then the model going back and forth with the A/B switch . Same with my 79 JCM 800 thru my mid 70’s 2x12. They are too close to even tell. Both use a stock cab plus a Michael brittt IR, plus hours of subtle eq shaping to achieve that, but you can get to the “ close your eyes and you can’t really tell the difference place” comboing cabs and IRs is a good way to get really close with less eq which is never as authentic if you really have to boost or cut to match.