It depends . I usually prefer to use it , especially when using a toy , but can sometimes get away without needing it . <| sep |> I feel you , but GH has its share of problems too . Nowhere is perfect just try to ignore the idiots and you ' ll get some good information from all of the forums . r mk often seems more lighthearted to me than the other forums and that is nice sometimes . <| sep |> yeah i have itwant to TT it w multimutt ? <| sep |> Right . And you can figure out your exact CO by tracking your calories and weight , or you can go with the calculators that are close enough . <| sep |> Probably their massive livers . <| sep |> im thinking the F 18 or Su 30 <| sep |> Hmmm that might work , thanks for the link ! Air flow is gonna be really crap though . probably have to buy an extra case fan which I maybe wouldn ' t need if I didn ' t do it that way