Really depends on what you prefer. Best bet is to get behind a Tac A1 and see if it's comfortable. If you don't like it, then get a lite model or some other model with the appropriate bolt face and have a Smith spin you up a barrel and drop it into a Manners or a McMillan. The CTR is a great starting point but if you plan to swap the stock may as well save the extra $400-$600 you'd spend on the CTR and put it towards a custom barrel and stock.
I really like my McMillan stocks. I bought a Manners and quickly returned it due to the inlet not being centered, the color wasn't finished and the barrel channel wasn't straight. I much prefer McMillan but alot of people prefer manners to McMillan sit that again turns into a personal taste. I have my 6.5 and 223 both in McMillan A5 stocks right now. Hope this helps?
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What bipod are you running on the creed? Both are great looking rifles