Question: What are the screws/bolts that hold the 1F to the table like? Do they just screw into the wood of the table, or are they, or can they, be bolts/nuts.
Someone offsite suggested that I could bolt it to the table rather than screwing, and then using large washers, or backing board, to eliminate the chance of the screws pulling out of the MDF when hung. If bolts are possible, I may be able to use the HMR with a Torsion Box and support the 1F from the inside of the box. Metal plates for instance.
This is assuming that marine plywood or similar substitute cannot be found.