Help with shoulder pads?

This is my first custom clone and everything snapped in fine except for the shoulder pads. Even with a hair dryer on both surfaces I cannot fit the peg on the shoulder pads into the joint of the torso. Any help is very appreciated as I have put a lot of work into this project. Thank you in advance!

This is my first custom clone and everything snapped in fine except for the shoulder pads. Even with a hair dryer on both surfaces I cannot fit the peg on the shoulder pads into the joint of the torso. Any help is very appreciated as I have put a lot of work into this project. Thank you in advance!