Reason TO sack the transports (I’m not in full support, but if I was feeling froggy, Borneo would be at least one target and here’s why it works, espceially now):
With the Indies fleet gone, it forces the sub to take out one, and a FTR to take out one transport. If the UK has any ship left, plus if you move the US Pac fleet to Solomons (and take it) turn 1, you are now in position to PROTECT Borneo w/both fleets (include a US/UK buy for Pac fleet). Now Japan can try to retake Borneo, but at what cost? They’re down a BB/CV/2FTR at this point, and if UK/US buy Pac fleet, you are now talking about having to take Borneo with remaining Indies UK ships and India buy, which would force you to move almost everything, but then the US could also just move to Iwo, and be in position to off balance Japan. Or Japan is just going to have to live with being at -4. You can do this on UK2 if you want, but I would only cough up one CA and have the US in the Solomons protecting a counter.