Subagents usage advice

I have a personal project that at the moment is mostly just data manipulation and analytics from a pretty large local DB. I have some pretty good organization already and can organize more to limit the file search token usage that otherwise could be avoided. I have used SOL for the majority of this project, and astra for some actual Realtime practice and use case studies with my application. However I am at a point where I have many running components together and need a full audit done of the sol engines work. I plan on using astra, so the goal is just minimizing token usage for a full audit to be completed. One of the ways I have read about limiting this usage is offsetting the less intensive thinking portions of the process to subagents. Is Luna reliable enough to use for this? should I use sol as a subagent to audit my work that has already been audited by another sol agent?? I just don't want to be in a position where I spend a majority of my usage on an astra full thorough audit of my entire system, but all for not due to poor contribution from an older model subagent. Any advice on subagent commands and usage for auditing would be helpful.