RE: another receiver question
It is only illegal to change Tx Crystal without realignment. If the Hitec RX is a negative shift version or a selectable shift set to negative shift you will be fine. You may legally change Rx crystals to work with your TX. The hi lo band thing only applies to Futaba RX's only. All Hitec RX's are plug and play with any channel within the band.
Never mix crystal brands, differant brands are cut differently and it may work but you may also be more exposed to interfearance from the commercial channels that are closer to your channel than even the nearest RC channel. Hitec RX use only Hitec Crystal , Futaba Rx use only Futaba crystal.