https://www.chiefdelphi.com/forums/s...d.php?t=113954
We used a photoeye with two or three sections of reflector tape in 2013 full court shooter mode, speed set to 3700 rpm, max speed was around 4400 on the cim and wheel.
This year 2016 our shooter wheels used Andymark CIM encoder wired to the SRX and the using the PIDF on the srx. The CIM coder is 20 counts per Rev, from website, but the SRX counts the transitions on both channels, so 80 counts per rotation or the wheel. This was enough resolution to work well.
If you do this method, please read the SRX encoder manual and make sure you use the pull up resistors for the cimcoder.
You should probably review the hardware portion of the manual, as you may need pull up resistors for the sensor you are using too.