ive just bought the 31 foot xtel off jaykie and for me its the ideal pole as its short when collapsed so fits in the van,easy to take through buildings and reaches 4th floor, it only weighs 3 kgs. probably best for residential, i would imagine the 27 or 31 ft c/f xtel being the ideal pole for your needs
i have a brodex 36ft c/f is a bit to rigid but would be better suited to large commercial