Breech Block Suite for Zesty Nimble

**First and foremost**, i find that the [standard Breech Blocks](https://zesty.tech/collections/spare-parts/products/breech-block-1-75-mm) work very well even for [Makeshaper Ultra-Flexible TPU (nee X60) filament](https://www.makeshaper.com/product-category/ultra-flexible-tpu/). I use these modified blocks for [one specific application](https://forum.zesty.tech/t/ninjaflex-and-breech-blocks/204/4).

**Note well** that extra compression of soft filaments can easily result in the filament being