It can only help. Here's why. The VA will use any evidence that helps your claim to give you a VA disability rating. If your TDRL exam shows your condition got worse, you can use it as evidence. If it doesn't, then you don't have to present it in your case. You can gather as much evidence as you want that backs up your claim. We help veterans do that, which is why we have so many veterans that have won their VA ratings.