Dr. Scholl's pads, liquid rubber, flat pads and magnetic flat pads are usually very good products. However, they are not custom fit. We recommend Orthotics to be worn along with FLAT pad cushions underneath though ( Dr. Scholl's). Flat pads provide cushiony, fluffy bounce on each step.
The more rigorous the activity (such as running or sports), the more layers of flat spongy cushions we recommend you may put underneath the Orthotics. Keep in mind though, the more cushions, the less balance. Some people like NO cushions underneath to provide more stability; while other people like flat cushions for cozy feet and bouncy steps. Ultimately you decide what feels best.
We do not recommend to place a flat cushion ON TOP of our custom EVA orthotics for reasons that there becomes LESS SUPPORT directly underneath the foot. Our orthotics are designed for optimal support right NEXT to the underside of the foot.
(Note: How about magnetic insoles? Magnet insoles do not lift arches, they merely increase circulation. Since anyone can benefit from magnetic pads and other types of flat pad insoles, gladly purchase a pair of magnetic insoles if you like to be used underneath our orthotics. Make sure there is no built in arch on the insole you wish to wear.