Hello, I am currently in the process of growing my new lawn here in southeastern PA . I have about an acre of grass coming in and wanted to ask a question about the first cut. I know to let the lawn grow fairly high before giving it the first cut and to not cut more than 1/3 of the total length of the blades of grass. I also know to cut the lawn at 3-5 inches as well. The seed that was dropped was a 50/50 contractors mixture of tall fescue and annual ryegrass. I went ahead and dropped some additional seed which was a Pennington grass seed mixture containing tall fescue (94%) and Kentucky bluegrass (6%). My question is that I am wondering if I should rent or borrow a 21 mower to give the grass its first cut or can I use my homeowners ZTR (Husqvarna CZ4217). I thought that the ZTR mower might damage the grass too much while riding over the new blades. Can anyone provide some thoughts or advice? Thanks, T.Wells PS I am most likely a few weeks away from actually mowing.