I did not like the idea of having to hold the spring loaded channel 3 switch to keep the transmission in reverse on my DX3. I could just imagine what would happen to the trans in my Savage X if my finger slipped off that spring loaded switch when backing up. So I decided to have a look to see what I could do about it. Here is my results. I wired in a pair of mini toggle switches in parallel with the factory spring loaded switch. I used a pair of switches because that what I had here. I think a single switch with a center off would work just as well, but I didn't have one. So the right switch merely turns the left, or reverse switch, on and off. It works perfect. Turn the right switch on and use the left switch to shift between forward and reverse. My solder job may not be professional looking but it works.
I know I have VOIDED my warranty.
Here are some pictures.
The first is a look inside the transmitter.
Second is a closer look at the lands I will solder to.
Third. is the location for the new switches.
Fourth, is switches installed.
Fifth, closer looks at the new new solder joints.
Six ed, is a closer look at the switches.
Last, top of transmitter with labels installed.
Ron