Wilson Sasha Spike adjustment help?

I would like some help with regards to the Watt head adjustments. Wilson provided spikes with 4 different heights to tilt the back of the module. I found using no.3 too lean but getting too much bass with no.2! I wondered the best sound should come from the height between 2 and 3, so I used a coin at the buttom to raise the number 2 spikes a bit and it works. Yet, I think this is not the best way so I wonder anyone have played around with those adjustments and if any after market spikes with custom height can be found? cheers.