This thread is drifting into the matter of re-mapping the engine computer. A good topic and certainly worthwhile to explore. Strangely I find our Plus Six very docile to drive round town and the power band great but you never know what a bit of fine tuning will do. You/I don't know what changes MMC made during the production un. I do know that you cannot go in to the car computer with Toyota software - we have tried! You need to have a Morgan version.
Ian - more to the point YES change the brake pads, and while the brake fluid change may not make a big difference, change it as the brake fluid, as in our case, had picked up too much moisture and that affects hot operation.
The only question is, "Are you going to keep us waiting until July to find out if it has worked?"