I really struggle in windy conditions. All my discs start turning over. My 167 gram magnets are the worst. If you can throw 400-500 feet, are there discs that you can't throw? Are there discs that you just over power because you have so much arm speed? Or do I just really suck throwing into ahead wind?
Dave Feldberg has talked about this topic and if you can find his youtube video on it, it is worth watching. I think it's the 2011 USDGC video.
There is a tendency to pull harder into the wind, you're overcoming the wind after all. Dave talks about shanking Banshees, one of the most over stable discs out there. What he says to do is to take some off, and let the disc do the work. By throwing hard, you are overcoming the natural tendency of an over stable disc to turn out of the throw. That makes the disc more susceptible to the wind.
Great technique relies more on torque than on power. IMO, a reliance on torque puts all discs on a more stable trajectory (that is, an over stable disc goes to a stable flight, it is actually less stable) early in the flight, (even understable discs, I don't know why). Over reliance on power puts all discs on a less stable trajectory. If you rely on torque, once the disc gets down the fairway, the natural tendency of the disc kicks in and it holds it's line.
I use Destroyers into mid level winds, and the Scorpius in higher level winds. Rarely do I have to go to a "Firebird" alike disc.
The Magnet is going to be tough in the wind IMO, try a vibram VP, even that will turn in a big wind. For massive winds where I need a putter approach, I go first to a Breaker, and then to a Harp. They are very flat putters, i.e. catch less wind and tend to hold a line, period. Frankly, I can't turn a Harp over, and if your technique is bad it's going to come out and dive left on you. I'm not advocating those discs, there are equivalents from other companies. Look at the inbounds flight charts.