The MD4 is a turn-resistant midrange by Discmania that adds a little more stability than the MD3, but lessens the glide to make it more stable in windy conditions. The MD4 offers a stable flight that will hold long hyzers and hold up in a headwind. The MD4 has a similar flight and feel to the popular Innova RocX3.
This P-Line plastic (similar to Innova KC Pro) is a firmer blend than the normal Discmania P-line.