I ordered the Pinbits Star Trek pop bumper mod and here are some pics that others may find helpful. I was having trouble using the "cheat" that Pinbits described on their site so I just removed the Vengeance assembly to get better access to the pop bumper that is partially obstructed by the Vengeance assembly. I saw other posts where others were wondering how to remove the Vengeance assembly so this may help them as well.
There is a pro and a Prem/LE version of the pop bumper mod. The mode consists of blue tinted plastic inserts that install betwenn the pop bumper base and the pop bumper cap and they will glow along the edges when the LED's are on. Also included are some bright blue LED's to replace the white ones used by Stern and longer screws to re-assemble the pop bumper cap. These are needed since the caps are now spaced a little higher up than they were from the factory. The LE/Prem version has slighter modified insert to allow it to fit under the Vengeance assembly. This post will show how I installed the mod under the hard to reach bumper under the vengeance.
First step is to remove the flat plate under the vengeance. There are two screws in the front that need to be removed.
Followed by 4 screws. I found it easier to remove the screws with he Vengeance pushed forward in the crash position. the two back left screws also hold down a clear plastic. When you reassemble it the screw with the flat washer goes towards over the bare plastic while the screw with the star washer goes witht eh one that also secures the cable tie.
Once the flat plate is removed you will have access to the two screws under it.
Next you need to remove the last two screws. To get access to the right side screw you'll need to first remove the plastics assembly secured by 3 screws. If you also have a plastics protector set this is a good time to install it on this piece.
You can now get access tot he right side screw.
Now the last screw is on the left side into a post.
Now you should be able to carefully move the whole Vengeance assembly enough to give you clear access to the pop bumper under it. The Pinbits inserts just go between the pop bumper body and the cap. I really like the blue LED's. Even if you don't mod I think switching over to blue looks nicer than the stock white that were in my machine.
While I had the plate off I installed a star field sticker on it. I tried to find the post of the pinsider who made these but I couldn't find it. It probably wouldn't even be noticed by most people since its mostly covered but I think it looks cool and blends in with the rest of the play field art nicely.