Synthesized / Digital / HRS Confusion... help please!

[DomRC]

I'm looking to upgrade my standard R153F 40mhz futaba micro receiver to the synthesized R303FHS, where you just dial in the frequencies (I know its not quite 2.4Ghz but it'll do me for now).

The synthesized receiver is 'HRS compatible' and will be used with my futaba 3gr fs tranny. I assume this means i'll be able to use my analogue blue bird servo without frying it as the HRS mode can be turned off? Isthe receiver therefore both analogue and digital?

Also, If I'm not using HRS mode, would i see any difference in performance vs my old standard receiver, or would i just be paying for the convenience of not having to buy crystals?

And finally, I assume if I got a digital servo eventually, I'd be able take advantage of the HRS function on the R303FHS receiver and enjoy more responsive steering?

Cheers