Hurst competition plus vs OEM hurst?

Here is some more info from the Hurst web site under FAQ

Why doesn’t my new Hurst Competition Plus fit my OEM linkage? My car originally came with a Hurst Shifter.

Hurst originally supplied only the shifters to the big three – made to their specifications. Hurst did not supply the linkage. OEM linkage is frequently smaller in diameter and/or the shifter is mounted in a slightly different location, making the Hurst aftermarket shifters and linkage incompatible with OEM shifters, linkage and mounting plates.

What is the difference between the Hurst Competition Plus shifter and the Street Super Shifter?

While both shifters use the same legendary Hurst mechanism, the Competition Plus uses mounting hardware and an appropriately shaped stick handle to locate the shifter into the vehicle’s stock location or console. The Super Shifter is a “no holds barred” shifter, and uses straight linkage rods to minimize rod flex during hard shifts. The Super Shifter makes no modifications to the mounting hardware and will not fit into factory consoles; they typically mount high and at the end of the tailshaft to use the straight linkage rods. Super Shifter also utilizes a short 7 1/2 inch stick to keep the throws as short as possible.