The Scotts spreader has a dial on there they call a micrometer. The settings on the dial are tested specifically with their products and their spreader. I'm not sure how they compare as I've never seen the Sears spreader. The Scotts Company's consumer services division keeps a list of many spreader types and can often help with setting the spreader before applying their product. You may want to contact them. Look them up at www.scotts.com.
Conversion Chart for Scott's Easy Green Spreader.
Spreader settings for Scotts manufactured spreaders are listed on the back of the bag.
Abcde equals 12345
No
To convert from a Scotts spreader to an Earthway spreader, you would need to adjust the settings to match the recommended application rate for the Earthway spreader. Refer to the Earthway spreader manual for guidance on setting the appropriate spreader settings for the product you are applying. Additionally, ensure that you are familiar with the calibration process for the Earthway spreader to achieve accurate results.
aperture settings
The spreader setting for Scotts Southern Turf Builder when using the EZ Broadcast spreader by Republic is 3.5. If you are using the EZ Drop Spreader by Republic the spreader setting is 6.5.
The correct setting for both spreaders is 3
It's on the bag
You would want to use a spreader setting of 3.5. Go over the entire lawn 1 time.
If you send an email to Scotts Consumer service they can actually send you the spreader settings you need. You can contact them through their website and they will email your spreader setting. https://www.scotts.com/smg/contactus/contactUs.jsp?navId=page900108&parentId=page900134