As we all get older things sag at the front, just ask anyone over 50! My Jimny is heavy and my old springs have worn out. However when compared to the new springs the old ones are actually longer! This is more about turns and wire diameter. The new ones have an extra turn and are made of 13mm wire compared to 11mm so I believe they will hold up rather than just compress and sag like the old ones. I can actually press the old ones by hand!
Still, there is a lot of weight up front so I decided to give the springs a fighting chance.