I am wanting to get a centricity gauge. After a lot of reading the two i'm looking at are the Sinclair and the Neco. The Neco is about $70 more. My understanding is the Neco will also read the case wall thickness and the Sinclair will not. I can't decide if that if its worth the extra $. I'm not a competition shooter but just an anal hunter. If I get the Sinclair is there another tool that I can add later that will measure the case wall thickness?