Hm.
There is a reason for the fact that most shorter springs you can buy are harder too... With this method, you sacrifice loading capacity and/or bad-road capability because your unsprung mass will more often use the whole freedom of movement it has left. With shorter, but harder springs, you get an uncomfortable ride, but hold basically on to the old capabilities regarding the above points.
Naturally, it all depends on how far you want to go... down, that is.
so long,
tinduck
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