This disc is incredible. I can not see myself taking this disc out of my bag. I struggled for a long time finding a straight midrange I liked that had good glide while feeling good in the hand. I tried multiple discs and this one was a stand out winner. This disc can be dead straight, slightly understable, slightly overstable, holds any line you need. I feel like this is a true 5 glide, maybe even a 5.5/6. 
 

200 plastic: baseline, very flexible, and does not beat up as fast as you'd think compared to other base plastic. Great for hyzer flipping and also great for short approach shots that need to stick to the ground. Once beat it, turns more into a -1.5/2 turn and a 0.5 fade which is really nice for the woods. 
 

500: feels like a gummier star plastic. I can throw this full power and it will not turn over. With full power it will have a full flight, and never burn over. Power down and I get a dead straight flight with a tiny bit of fade at the end. 
 

I know we joke in the disc golf community that buying more discs makes you better, but this disc truly made my game so much better. Very reliable and I don't see myself changing this slot in my bag ever. 

An amazing do it all mid from pushing hyzers to flip up tunnels and turn over shots the m4 does it all 

This disc in 500 plastic is amazing. Very durable and stay pretty stable but if you put on a line it stays on it.  I would recommend this disc to anyone that wants to try Prodigy. One of there best discs in there lineup.

I really enjoy throwing the M4 in 500 plastic. As someone who has also thrown a Buzzz and a Mako3, this mid range flies straight as a laser. They each have their own flight patterns; however I have been going with the M4 every time. It's very workable and as someone who has been developing their disc golf skills, this mid will last you a long time.