I recently purchased the Cub Cadet HPS ride-on spreader.(same as the Lesco) It works great for me and I'm happy with the purchase. I'm interested in the drop in sprayer unit and want to know if anyone is using it and how they feel about it. $2800 for the HPS and about $800 for the drop in sprayer make much more sense to me than spending 7 to $8,000 for the other ride on units. But I don't want to argue about the validity and quality of the other ride on's. Like I said, the HPS is working great for me and the way I use it, I just want to know if the Gregson-Clark is a decent unit or not.