Convertible 40/40 lowering springs

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looking for a decent 40/40 lowering kit for a 325i convertible

I like the look of the h&r cup kit 60/40 but I feel it compromises the ride quality(my brother has it fitted to his cabby)

I was hoping I could find a decent set of 40/40 lowering springs and then use the e92 hats on the front to lower some more, hopefully this will be a happy medium between standard and 60/40(achieving a decent drop and possibly better ride quality than 60/40)

Problem is I was looking at h&r or eibach but none do a 40/40 kit, it's either 35/35 for h&r and 40/30 eibach

Can anyone recommend a good set of 40/40 lowering springs?