I wanted to provide everyone an update here for those who may be searching the internet or these forums in the future.
I participated in the LDES system due to my already 100% P&T. My conditions were a result of my Active Duty time, and I was being MEB'd as a Air National Guard member. Although I did not have a LOD generated from AD/Guard, when my potentially unfit condition was sent to the National Guard Bureau (an additional step AD doesn't have to do) they automatically created me an Administrative LOD stating prior service condition. I did not have to generate a LOD for my active duty time myself, as all my medical records and VA rating pointed to it already being a result of service. Although IDES has a clause where you can request to only be C&P examed for DoD purposes only, it was still contingent on others doing their job to make sure my VA rating isnt touched. Unfortunately, I did not want to risk this so I elected LDES. After speaking with the Defense Disability Council, they also recommended I pursue LDES over IDES. My IPEB results came in with proposed 70% DoD TDRL for my unfit condition, with the same condition on the VA side being rated 100% untouched by the process. I hope this helps those in the future in the same situation.