Hi people! I need a lightweight portable tripod and so far these 2 are the best for the budget: http://www.bhphotovideo.com/c/product/548524-REG/Manfrotto_190CXPRO3_190CXPRO3_3_Section_Carbon_Fiber.html OR http://www.bhphotovideo.com/c/product/548526-REG/Manfrotto_190CXPRO4_190CXPRO4_4_Section_Carbon_Fiber.html The core difference is the 8 cm less height with the 4 section one. Though im worried about its sturdiness. My heaviest lens is a 70-300. I'll get a 496RC ballhead. Now what do you think? I know 8 cm is a lot less, practically 15% less. But at the same time I sure dont want to lose too much stability, as this series of manfrottos are already not that stable.