Interesting comments in this review/blog about using longer spinning rods: http://activeanglingnz.com/2015/09/24/are-longer-rods-better-on-the-flats/
My first long wand was 4 piece 10’ (3.04 metre) rod rated for lures between 15 – 60 grams. It was a fairly heavy model (320 grams) designed not just to be a lure casting tool but also for light surf casting with bait.
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While this rod was excellent at lifting the line off the water and re-depositing it upstream it was too heavy to use for more than 1 ½ hours at at time. Muscle fatigue became a constant companion.