Having now had time to test this, I've found that I can press the OEM remote's record button as soon as I've pressed the power button and when the display comes on, it shows the deck is in the standard Record-Pause mode. So that's about 1 in total (probably less)

I've also found that the Pronto could well not be learning everything the OEM remote as if i press the Play button on the OEM remote, it'll bring the deck out of standby and start playing. If I try and do the same with the learned Play button on the Pronto, it won't do it.