I have a Futaba magnum junior FM transmitter with a Futaba R123F reciever and I want to upgrade my radio system. I really like the 3PK transmitter and I know a place where I can buy the transmitter only. Would it work to use the 3PK with the R123F reciever. The 3PK has that HRS (high response speed) feature and I wasn't sure if the 3PK and the R123F would work together because the R123F doesn't say it has a HRS feature. I'm just asking so I don't buy the transmitter and have it act all wierd with my reciever. If I wanted to later get another car could I use a Novak XXL reciever with the 3PK. Has anyone had any experiance with this? Any opinions or help would be greatly appreciated! Thanks in advance!