It seems that you really don't know what you are talking about when it comes to levers and springs. There aren't many monoshocks that are mounted far forward without linkages to decrease the force/amount of compression among other things. In addition, the only part of a shock that will contribute to unsprung weight is the lower half of the shock body. This is because the upper half is supported by the spring, and the spring itself is in some state of quasi self support. In other words, if I put the swingarm/wheel/tire/brake/etc. on a scale it will weigh the same for 2 shocks or 1.