I did this $20 intro cut a few years back. I gained few decent clients however there were a considerable number of one time cheap cut people. What automatically goes through their mind is this guy will continue to show up for $20. I only put this out on smaller lawns. Offer expires when route is full. Many paid the full quote price on the first cut anyhow. Do Not give them a regular quote for service then still do a cheap first cut. If they want a quote for mowing they will have to wait until after the first cut is over or they have just skipped the cheap first cut. They can’t have it BOTH WAYS. I look at this way. it takes time to drive out for an estimate anyhow just do the first cut THEN give them the quote. Once you mow it once you have a better feel for the property. It can work to your advantage. You need to have fine print in there for overgrown lawns etc. You need to be paid on the spot or no cut. If edges are overgrown give only a sample of blade edging. I was considering doing an upgraded version of this at $25 intro cut, $30 for a corner and $35 up to half acre. But what is happening now is there are legitimate long time companies in my area that are full service now putting quotes for mow and trim at $24.99 regular weekly service that I mow for $35. Sure enough another lawnsite member put a $24.99 door hanger on one of my clients lawns last Spring that I mowed for $35.