Re: Talon sr, or SRX?
 

8 SRX on our robot this year. They're awesome, particularly cause of their small size. My only complaint is the permanent wires. It basically forces you to place your motor controllers next to the PDP unless you want to add connectors, and if any of these wires gets damaged enough, it bricks the controller. CAN is really cool but I don't think it's significantly better than PWM. I feel that there is no "better" controller between the SR and the SRX, they both have their advantages and their disadvantages.

Re: Talon sr, or SRX?
 

Yeah, I'd agree, the SRX's size is great, but those permanent wires only allow you to do temporary connections on the other side, so you're kind of stuck with always using Anderson connectors. The SRs are great and reliable but take up more space. Also, make sure you wire them the right way, otherwise... You don't want to know, unfortunately our team does. ::ouch::

Re: Talon sr, or SRX?
 

If you're using limit or PWM control within the SRX, wouldn't it make more sense to connect the controller directly (that is, connector-to-connector) to the motor, then use a long line from the PDP to the SRX so that the data runs are shorter? Only the power lines and CAN bus would need to come out from the control board, rather than all the sensor lines. (I'm presuming that the feedback sensors are located nearer to the motor than to the PDP.)

Re: Talon sr, or SRX?
 

I assume by "bricks" you mean something other than "makes it never work again"?

The wires are repairable/replaceable. We got a beta Victor SP that was non-functional out of the box. All we had to do was open it up and solder the green wire onto its pad.

Re: Talon sr, or SRX?
 

The SRXs have far nicer wiring; even if you're using them in PWM mode, the ability to daisy-chain the built-in wires of multiple controllers that receive identical signals (e.g. in a drive setup) is extremely convenient.

They're also smaller.

Re: Talon sr, or SRX?
 

10 SRXs on the robot, of which we used 8 (4 drive, 2 lift, 2 intake). We used a limit switch wired to a breakout board on the Talon. We also sell the breakouts if anybody needs them.
We wired some SRs on our 2012 bot today, and I was surprised at how much larger they are.

Re: Talon sr, or SRX?
 

SRX are awesome, because you can use their breakouts to connect encoders or limit switches. It makes your code lighter, and gives you more ports on the Rio. As an example, we'd use 8 PID subsystems with last year's talons. Now we have only one, because they are on closed loop.

TL:DR Talon SRX all the way