Questions on whether to get my back leg going forward / linear but when I do, I feel like I cannot sit into my back leg. Feeling pretty lost. Any input is appreciated.
It's a feel thing and a strength thing. Can you start to incorporate side lunges into your off-season workouts? Start with body weight and then add dumbbells in each hand. That will have a direct positive effect that will translate to the bump.
Post video or your delivery so we can see where the problem is. As Steven said, it's probably a strength issue but it could also be mechanical mixed with that.
Will absolutely give that a try! Thank you