By default the setting of the spring tension ex works is set to be strong. So the slider works very fast which is good for fluent fast phrasing. This strong slider action is preferred by most of the players.

We do not provide slide springs with different strengths for any of our chromatic models.

The reason is that setting the standard spring to a softer action can be done easily by oneself.

The only thing you will need is a pair of universal pliers, like these:

...and a 2mm nail or metal pin to better hold the spring by hand at its screw.

The following drawings will help to see how to deform/bend the spring for a softer action:

You need to press down the spring very near the screw in order to deform it permanently (you also might use just your fingers instead of the pliers).

With a little technical skill it should be easily possible to find the right spring tension for your way of playing.