I support the measure but have doubts about how it will be implemented, what happens if someone just stops the previous sps rentals and gets a new one?, that would lead to constant removals and new rentals to refresh the counter.

Honestly I would just lower the sps rental extraction based on leagues instead to affect the highest leagues more than bronze, silver where newbies could be.

That way you discourage sps rentals higher where ownership should be a must.