Rear tine. There you go. Worth extra money. Front one beats you up. I have one and use the back cover to move dirt with i go in reverse it works well that way if you gentle.
Weeds .... I haven't tried this yet but I will once rain stops ............
1 Gallon Vinegar 2 Cups Epsom Salt 1/4 Cup Dawn Dish Soap
Another person said ............
I put a gallon of bleach in my sprayer and it wiped out the weeds in a couple of days.