This is an amazing all-around mid range. It can get distance, you can rely on the fade in windy conditions, forehand friendly torque resistance... you can even get fantastic forced rollovers with it. And, it can easily function as an approach disc as well. It's amazing

The Quantum Solstice is the same as the Innova made Discmania MD4. This disc can handle full power BH and FH but requires skill and technique as it's not a meathook. Feels great both backhand and forehand. 

The Solstice is the MD4 mold and flies like a broke in MD4 out of the box.  The quantum plastic is a bit gummy and feels great in the hand.  The gummy nature of the plastic really shines on cold days.  It has good stability and can handle the wind without turning over.  The Solstice can be a great replacement for you MD4 lovers who don't want to pay the asking prices of an Innova made one on eBay.

I will start off the review by saying that like most other Innova-produced runs of 2022, the quantum plastic, similar to champion plastic this year feels gummy and has a less overstable flight than what I imagined from the flight numbers. With higher glide, deeper rim and less torque resistance on forehand than a DGA Quake, I did not like throwing this disc as much on forehand. I liked throwing the Quantum Solstice hard and flat for laser-straight path for 3/4 of the flight with a moderately hard left finish RHBH. I am hoping Innova can make a stiff S-line run of this disc in the future!

If you're looking for that MD4 equivalent, the Solstice is the #1 option. It feels perfect in the hand and is very serviceable for forehands. It's a great overstable midrange that Millennium offers.

Been looking for a replacement for the C-Line MD4 for a while since they're so hard to come by. I actually like this even more. It's a bit less OS than a brand new MD4 which turns out to be exactly what I was looking for