I recently sold my TC Black Diamond, to force myself to upgrade. Long story short, through a LOT of searching and reading, I've pretty much settled on getting a CVA Optima. I've probably read over 1000 posts on this site, while trying to come up with a good load and setup, but I'm still confused about a few things... 1. From everything that I've read, it sounds like I should shoot BH 209. I understand that there's a special breechplug that I need to get, and that I can get one from CVA or one from Western Powders? It sounds like the one from Western Powders is preferred? 2. I've been reading about the use of shims or O-rings for the breechplug? Is it one of the other? Do I need them? 3. I plan on starting with 300gr XTP's. From what I've read, these shoot well out of the CVA's and perform well (good bloodtrails are a big plus!). Thoughts? 4. I'm confused about different sabots. In the past, I've always just shot the sabots that came with the bullets. Pretty simple! Now, I'm reading about green, black, smooth, crush rib, etc... HUH? What's the difference? Better yet, just tell me where to start! LOL 5. With my previous muzzleloader, I always used Winchester primers. Are these OK with the BH or do I need to buy a different primer? 6. Is either a BDC or duplex reticle scope preferred? Opinions? Things to consider? I've never owned a BDC, but I guess for those long shots, they might be helpful. I'm open to scope suggestions for ~$200 Our muzzleloader season is only 8 days long, and after the regular season in NY, so I really don't want to invest a whole lot of money into this. I'm sure I'll have more questions! I appreciate any help, as I've been feeling a bit overwhelmed.