Quote Originally Posted by Shed tuner View Post
The wire thickness makes a masive difference to the stiffness - I think it's proportional to the cube of wire dia - so even a 0.1mm increase will get you where you need to be.
Looks like he doesn't have that option with a Titan spring

http://www.airgunbbs.com/showthread....50#post7469850


Pete , remember a shorter spring will be stiffer ( all else being equal )