Great writeup! While I have been leveling up cards for my own use already, I haven't been leveling them up specifically to rent out. This is something I will have to look into doing very soon - getting a ~40% ROI (on top of being able to still collect SPS airdrop points!) sounds very appealing 😁
RE: Splinterlands rental ROIs > 50% possible? Why I maxed out a gold foil Scavo Chemist