Electric bass fingering does not and will never work on double bass. The current standard of three half steps in the hand is a standard for good and clear reasons.
Since human achievement knows no bounds a few classical players are making 1-2-3-4 work with stretching and pivoting.
Exploring these techniques to expand your ability to play the instrument is a great idea.
Just to clarify, the current standard (1-2-4 fingering) is of 2 half steps in the hand. The alternative 1-2-3-4 fingering method has 3 half steps in the hand.