Hey i could qualify because in written form my name is a woman's name in English although in both written and spoken form it is a man's name in Finland
Only pecs and body fat not real man boobs here so only a part of my experience is helpful. You could ask Val Jenkins. She throws over and all the guys complain about shoulder high arm movement being so awkward and the arm muscles feeling tight and the arm movement slower as a result too.
It is true that relaxed muscles move faster than tight like weight lifting muscles. The answer is always the same stretching and repetition will make throwing at shoulder height elbow forward loose and easy to not even notice. Nose angle trouble is a separate issue that is common to everyone.
Wrist down orientation is easy to lose without a lot of pushing down of the wrist and that takes muscle power. The nasty thing about wrist bones is that if your wrist bends back the wrist snap moves the hand to neutral and approaching that the bones are in the way and will raise the hand and the nose of the disc more than the absolute minimum of clearing the bones is. The bones give momentum to the wrist rising angle that gets multiplied if you don't oppose it with forearm muscles.
Hyper spin snap form doesn't allow the wrist to bend back at all from neutral and snaps to the right of wrist neutral. That way you can avoid the wrist bones bumping up the hand problems but resisting the bending back of the wrist starting at the latest from the elbow chop does still requires a lot of muscle power. It might be difficult to feel the wrist bending back because i filmed a beefy dude bench pressing over 230 lbs at that time after injuries and more before that having his wrist bending back without his knowledge.
Have you tried the Jenkins grip where the base of the thumb doesn't touch the disc and the outermost section of the thumb pushes down on the disc in about 70 degree angle? If you move the index finger as far back as possible you can also push the front down either with the Jenkins or a thumb almost straight forward grip. If you raise the rear of the disc to the base of you thumb you can also push the nose down.
Under the boobs pulls close to the body might be impossible for large chested ladies. The lower the arm is the more the nose angles rear ugly head but a navel height pull is perfectly fine for throwing with the front and the rear of the disc being at the same height from the ground.
One matter in nose angles is weight shift and upright posture at the rip is good and if you manipulate the flight you can bend forward at the hips for even more nose down angle. Reach back height and rip height should be the same so no rising toward the end.
For a full reach back both heels, the back and the back of the head need to point at the target in the farthest point of the reach back. Sure you can turn the shoulder even more than 180 degrees away from the target for a rounding beginning to a throw for more power and even bigger chance of getting the chest in the way. And a higher chance of hitting yourself and other max power related accuracy and consistency woes. So i don't recommend it for anything else than trying to break distance records if you don't spin 360.
Flat shots need running on the center line of the tee and planting each step on the center line. Anhyzer needs running from rear right to front left with the plant step hitting the ground to the left of the line you're running on. Hyzer is the mirror of that.