actually Imbue use a similar concept with their brass pistons which are x number of times heavier than delrin, and most everyone who uses those thinks their suspension was improved. a similar outcome can be achieved placing mass at the base of the shock, or in my case, end of arm. like I said, yes if you are an engineer, i'm sure you could pick holes in the theory, and you may need to play with shock oil, but, I have tested, and the weights work
mechanical grip as per post above yours mate