It is traditional to post a PRICE when offering an item for sale! It appears you are a vendor for AGM Engines from your 2 post so you should be posting in the Merchants corner. Please be upfront and tell us who you are instead of the suspected posting "tricks".
Gordon, (if that's your real name...) you do not have to try to be tricky advertising on the Flite Test forums. We welcome anyone that is involved in the hobby to share whatever they will with the rest of the community.
As Tritium says, you're not winning the trust of any of the forum members here when it appears you can't be honest to begin with.