I am using a take-off plate under the filter for my
oil cooler, with built-in thermostat from Mocal UK.
Works fine, 'cept that I had to really go at that thing with a die-grinder (dremel in the US??) to ensure the thing flowed
oil properly. Discovered that the take-off ports were 75% occluded by excess casting material. Always worth looking at and thinking hard about parts like these.