Cutting is usually my last resort. In this case, it was shortening a rod to attach the leg to the middle.I love your stuff but *ouch* cutting lego pieces
I also used this technique while making the legs.
That's a small sliver of paper. Basically, this stiffens the technic joint by allowing less room between the pin and the hole.
Look at the results! I don't consider this lego heresy because I'm not altering a part, I'm just shoving paper into it.
I respect your different opinion, but sometimes I just have cut stuff because I don't want to redesign the cool thing I just made.