You presented an excellent oil change process outline, Jolly. But just to be sure, I would emphasize that the oil system should be open at only one place at a time. The tank should be connected and contain oil while changing the filter. The filter should be in place while draining and refilling the tank. Otherwise air will enter the oil circuit, which then requires the pressure purging process.
RV-4 - Looking to buy
RV-14 - Selling assembled tail kit
RV-12 - Flying 2016; Sold 2018
RV-10 - Sold 2018; Flying 2018
SeaRey - Flying 2012; Sold 2017
2018 Contribution made