Thank you so much for the design suggestions. We will pass them on to our product design team. Also, your Heavy Duty 4452 comes with broader warranty coverage than 90 days. Once you register it, you will have all of the coverage noted below, up to 24 years depending on the machine part. Any questions, please don't hesitate to ask.

Heavy Duty 4452 Warranty:

LIMITED 24-YEAR WARRANTY
The sewing machine head and any of its parts other than those covered by either of the separate warranties below or those subject to normal wear and tear are warranted to be free from manufacturing defects for 24 years from the date of purchase. If any manufacturing defect appears in the sewing machine head or in its parts other than those parts covered below or those subject to normal wear and tear within 24 years of purchase, we will provide free replacement parts, but at your cost for labor. However, during the first 90 days from date of purchase, we will repair any manufacturing defect in your sewing machine without charge to you for parts or labor.

LIMITED 2-YEAR WARRANTY MOTORS, LIGHT ASSEMBLY, WIRING, SWITCHES, SPEED CONTROL AND ELECTRONIC COMPONENTS The electric parts of the sewing machine are warranted to be free from manufacturing defects for 2 years from the date of purchase. If any manufacturing defect appears in these parts within 2 years of purchase, we will provide free replacement parts, but at your cost for labor. However, during the first 90 days from date of purchase, we will repair any manufacturing defect in your sewing machine without charge to you for parts or labor.

LIMITED 90-DAY WARRANTY ADJUSTMENTS, BELTS, RINGS, BULBS, ATTACHMENTS Within one 90 days of purchase, we will provide required adjustments, and replace defective belts, light bulbs, or attachments at no charge. We will repair any manufacturing defect, which appears in your sewing machine within 90 days from date of purchase without charge to you for parts or labor.