Like you, I used to be 100% forehand off the tee, and like you, I realized that it wasn't going to cut it. I started throwing a 170 Champ Road Runner backhand with some success, but still not the 300+ lasers I saw others throwing.
I discovered this forum, and began researching. Found the article on
OAT, gave me an incredible insight on the physical principals needed to achieve optimal flight.
I then watched Dan 'Master' Beto's
instructional YouTube video (@ 2:26) and it allowed me to study the mechanics of an OATless release using the x-step.
I took the advice of many and 'disced down' throwing mostly mid-ranges (Wasp,Buzz,Comet) and a couple smaller-rimmed drivers (TeeBird,TL).
I've played at least 3 rounds a week, often times more, for the past 6-8 months using the info found here, and my success has been nothing short of impressive! I'm consistently throwing 350' on straight, hyzer, turnover lines, flex-shots, and hyzer-flips. I'm deadly with my mids inside 300' and I laugh at tree gaps, that used to terrify me.
Bad habits before DGCR:
-Trying to 'muscle' the disc using too much arm, not enough wrist.
-Arm was traveling in a arcing path, away from my body
-Dipping back shoulder, Raising front shoulder while attempting a 'flat' release.
-No follow through, finished my throw leaning backwards
-Aggressive footwork, aggressive arm-acceleration
I'm not a pro, but I have shot many pro-rated rounds, and it is all thanks to the information I've collected on this site, that and a lot of practice! I hope this helps you, and I'm sure there are others here more qualified than I to give advice.