Piston connections "slipping" under unreasonable force

Pistons have less 'rigidity' when adding multiple parts in a "string" of connections.

Example:

This can be better seen in these images, where the parts connected to the piston are "slipping" when mild force is applied to them, an amount that unrealistically should not be having this effect.
Example of pistons with no outside force applied:

Same example, outside force applied on the pistons

This has been a known problem in SR2, where forces exhibited on a piston are amplified if more parts are added in the 'string.'

A solution, which is annoying and ruins the minor realism that the builds that use these techniques have, is to increase the mass scale to an absurdly high number.