I think you may (not guaranteed) benefit from bring the bar out further when you unrack (depress the scapula more).
Had Minh and the guys at Elite start making me do this and I hit a comfortable rep PB despite only benching over 70% for 3 weeks since my shoulder injury.
As Stickler says too, slingshot won't hurt. If you're mainly doing raw the blue is best imo, particular for a sub-300lb bencher.
If you want more pop you can add reverse bands, or even loop a band around your elbow. Bit easier to do this than get less pop/support from the original slingshot lol