Hey Ron,
Yes what Paul said is correct. The kit manufacturers were not interested in safety or ride, just ride height. The “cut one tube and turn it” method of modifying the VW twin front bean is to get the correct ride height only. It doesn’t change the spring rate.
Shocks only dampen spring movement. It’s the spring rate that is causing your harsh ride. Several of the Forum members have done the simple modification to soften the ride. This was actually designed into the Beetle by Porsche when he designed the twin beam, mulitiple torsion leaves front suspension.
Keep in mind that these kits are much lighter than a stock Beetle, not to mention the completely changed front to rear weight distribution.
If you have any questions feel free to ask.