Doesn't cutting the seat blocks off cause the seat to rock side to side, or do you pad the tops of the "fingers" that engage on the bike to take up the slack?Installing lowering links is easy. You need 17,& 14 mm wrenches and I use a floor jack.
Put the bike on the center stand. Put the floor jack under the back end of one swing arm. Take off the nuts from the link bolts. Raise or lower the jack a bit so the link bolts are loose. Take out the bolts, the links fall away. Put one bolt through the new links, adjust the jack so the other bolt goes through. Tighten the nuts. Ride. Enjoy.