Anyone tried other springs?

[Loheswaran]

i have a conundrum.

I have noticed that the front durango springs have jump from 50.90 black to 58.85 dark green - elsewhere in the chart are quite a few other springs that are closer together.

both associated and Schumacher appear to have springs that 'fill the gap' so to speak.

With that in mind, can one try an associated or schumacher spring for those in- between rates or would you not mix and match springs - ie Durango rear and schumacher fronts.

In addition to this - what big bore springs fit the durango shocks