Picked up the shader and coil machine last month and have had a chance to use them throughly. After Tuning and some tinkering they both perform flawlessly. The liner is fast with some good punch and the shader runs fantastic! The frames very nice, machines feel like good quality. One for the rear springs snapped while using the other day. Not a huge deal. And I would say they are more on the heavier side but not a huge issue! Do yourself a favor a pick this set up! You won't be disappointed!