It’s hard to tell but if you watch the AFR gauge you can see when the booster comes online. If you’re happy with the fuel “curve” while accelerating hard i would not mess much more with bleeds or emulsion. If you notice trends in the curve you’d like to fix, that’s where I’d go though. If cruising (on the booster) is still rich take main jet out. If you’re on the transfers and still rich you need more TSR. Sometimes it’s a little of both and that’s why it’s rich (and why you can time the booster with an air bleed change and it makes a big difference ). If you do take main jet out be sure to put that fuel back in with PVCR for hard acceleration. A little math will tell you how much to add.