When I mow my lawn it is easy to see rows mowed in one direction, not both. This is due to the way the light reflects on the grass as it lays. That resulted in missed grass and remowing some areas. I tried marking each row as I went and aiming toward the marker. Kind of a nuisance. I saw on Youtube that if you had a roller behind the mower it would cause the grass to lay one way and when you came bach the next row......it would lay the opposite way. MUCH easier to see. As you can see, it works pretty good. I turned my roller on my mini lathe. All I had was Pine, which was too light. I will make one the same size out of heavier wood now that I know it works. Of course you will have to engineer how you install it on your mower. Mine was easy, there was adequate space to install two pieces of flat aluminum. It rolls easy. A word of caution, be sure the roller can't get under the mower body when you pull it backwards. I kept adjusting the length of the support bars till it worked OK, however I still look at the roller when I pull the mower backwards. Yes, it is an electric, battery powered mower. I didn't think I'd ever have one, but it was a gift. A friend gave it to me when she moved to Nevada where there is NO grass.

The only problem I have with the electric mowers is the simple fact that they do NOT like thick grass.  Motor seems to just want to bog down.  I'm going to get one of these....

 

1 hour ago, AndrewB said:

The only problem I have with the electric mowers is the simple fact that they do NOT like thick grass.  Motor seems to just want to bog down.  I'm going to get one of these....

 

Yes it does bog down some, depends on the battery charge, the grass height and mowing depth. Over all, I like it better than gas so far

 

I have been using a battery powered lawn mower since 2003.  I have used the Neuton made by D. R. Equipment, but I have seen the EGO.  Not sure if I have to buy one.  Divesting assets.  

 

Regarding the bogging, slow down.  It does not have a governor that pumps more gasoline to get the engine up to speed.  It is draining from a battery.  Just like sanding, back off and allow the machine to work at it's pace.  They are much lighter for us older folks, no gasoline or oil to maintain.  The blades to have to be sharpened.  That is a tremendous help.  But, I will never return to a gasoline.  My wife and daughter hated the smell of the gasoline exhaust on me.  Oh, well, you get to smell the fresh cut green grass.  And, this St. Augustine must be cut every 4 to 5 days.  

 

If your mower has 2 blades turning counter to each other, it is harder to get the pattern.  If you have a single blade, it is easier to make the pattern.  

When we lived up on the mesa, we pulled a 52" gas mower behind a Polaris. Between the rocks, cacti, junipers and bald spots, no patterns were discernible. Down here in the desert, we only have an acre and a quarter with not one blade of grass. The only green is the Creosote bushes and Mesquite trees. Plus the new trees, flowers and, bushes weve planted. None of which are big enough yet to really green things up. We're told that the native grasses will germinate when/if it rains.

Judging from the other properties near by, the native grasses will be scraggly and, only green during the monsoons. The rest of the year, it looks like short hay. We'll not be investing in a mower, anytime soon.

Well there are lawns in Nevada ! One nice thing about the desert is that all you have to do is add water and just about everything grows here. 
Paul

... It's only about a foot deep now, it will still be there when I get to it.