How to make the new Type Ds as good as the old ones

[amostay2004]

How do you cut the screw?
How about putting washers to make it tighter?

 

[Rune]

There are such tools, wich easily cut steel wires. Unfortunately, I don´t know, how they are called in English.
I have tested with two washers (instead of one). It helps, but you don´t get the same stability in the cube as with shortened screws.