Hi, bought a Sigma 150-600mm Sports to try out bird photography. Looking for a quality carbon fibre tripod below $700, without center column to match with a Manfrotto 502AH fluid head. Thinking of getting the FEISOL CT-3442 Tournament Rapid carbon fiber tripod. Any users of this this? Any Sirui tripod close to the specifications of the Feisol? Other recommendations are welcome. Thanks.