I have a 9hp nissan on the leftrear corner of my 22' classic. I have a stainless mount with the dense PVC hanger plate. I upgraded from the wood lamiate type when the wood laminate literally exploded at 5mph, catapulting the running kicker head-over-screw into Sitka Sound. Luckily, the fuel tank acted as a bouy, and the fuel line was strong enough to yard up the sunken motor.
The new mount feels cheezy, but it works good. If you're interested, I'll go find the make and model. It looks almost identical to the West Marine model pictured in the post above, except it's got the stainless finish.