How much weight managed to do that? I have one of those units and usually use it with 3-4 concrete blocks in it. I always think it could use more weight.
I tore mine up also -- i used steel channel iron to fix mine.
What make do you have?The Frontier 3ph core aerator I have does a very nice job and already has paid for itself. I definitely wouldn't want a core aerator any less than 60" wide on the 1025r nor any lighter. Weight in a core aerator is very helpful for plug pulling at the ideal depth of about 2.5" to 3". I add between 4 and 12 suitcase weights by hanging them right on the frame of the Frontier aerator.
I always cross core aerate at a 90 degree angle to the first process for optimal coverage. Few things will improve a lawn as significantly, without chemicals as will the pulling of plugs out of the lawn.
While the purchase of a good quality aerator is an investment, it can help pay for itself just like many of the other SCUT implements and attachments. Pulling plugs is contagious. Once a neighbor sees the aerator in use on a neighboring lawn, they often contact me and after the proper preparation, plugs are pulled promptly and profitably. I now have about a dozen lawns which I aerate each fall. You can cross aerate an acre of lawn in 45 to 60 minutes.