From what I've observed in the yard, LOTV will spread faster if there is a base layer of sand below the soil. The roots make an easy go of it through the sane, but the real soil gives it support.
I had it in two places, next to the bridge and in one of the beds that I merged. The bridge lot spreads very slowly. The other bad, which has a sand base, well lets just say I couldn't keep up with it! But as soon as it hit normal soil, it would slow to a crawl.
At any rate, I will have plenty at the swap!
