To be honest with you the only place I've used this kit is in the area where the warmer grass meets the cooler grass. Sometimes during the year, not always, the fescue gets really stringy and flops around with the wind flow of the deck making it hard for the blade to hit.This kit aids the vacuum and helps stand those strings up. I've never used this kit in the south. Mickhippy is downunder and I have no knowledge of his grasses.
Have you talked to our distributor down in your area? They would have better local knowledge of your issues.