Which recoil spring?

[sgmtino]

I am looking at recoil springs for the Witness stock 2 and its unclear if it should get a "full size" or a "long slide" recoil spring. Any help would be great.

[The_Shadow]

You can call Wolff Gunsprings and ask more specific questions and if you can just buy the 20 lbs spring which most are using.
https://www.gunsprings.com/EAA/WITNESS%20SERIES%20/cID1/mID19/dID100
Fits Full Size Models Only
Recoil springs are available with load-rated specifications to tailor the recoil function to individual needs. Each load-rated recoil spring pak includes an extra power firing pin spring.

For use in:
  Standard Size Models

    Factory Rating: 14 Lb. - 9mm, .45 ACP, Super .38 and 10mm

Extra Power

Extra Power - Pak Contains 1 each extra power recoil springs in 16, 18, 20 and 22 pounds. Three extra power firing pin springs are also included for both EAA and other models. (Stock No 13127)

[sgmtino]

I ordered the full size one I was wondering if I should have ordered the longslide  stock 2

[sqlbullet]

I used the standard length in my Match.  I think it is the same slide length as your Stock II.  The longslide would be for things like a 6" Hunter or Gold.