Yeah the numbers are definitely weird. I was sitting at 90% (really it was 94%) for 10 years before I understood how it works. Best to Google a VA benefits calculator and plug in all your disability numbers and that will tell you your exact number you ned to get to 100% My increase on my flat feet got me to 100 from 90.
But it's really all a game of numbers and matching what you tell them at the C&P exam to what the book definition is for each rating. Also each disability doesn't max out at 100%. Some may only max out at 30% so you'll need to know this when picking which disability to request an increase for. Then knowing what to say/do during each exam to ensure you get what rating you're going for.
I'll use PTSD for example since I saw a few fellas talking about that one here. That one breaks down in 0, 10, 30, 50, 70, 100 percentages. Then a site like this one (
https://cck-law.com/blog/ptsd-rating-scale-explained/) and it will tell you basically what percentage each rating needs to be awarded. So If you are at 30% and you read the 50% requirements, you know what you need to say and do at the next exam to bump it up. You can do all this yourself if you line everything up and have a game plan. Where these places that help you file come in handy is if you don't have the disabilities in your record and need them service connected. They usually have doctors on hand that know how to write up the diagnostic to get you service connected. You'll need that and a few buddy/lay statements to solidify the claims. Once it's service connected, it's just increase requests until you get to 100%.
It's too much to type but I can answer questions here or DM if y'all need it. I'm not connected to the VA or anything but have been doing the disability thing for a while and can share what I know. Great thread GOW