[adouglas]

No, that's not right. The bars will stay at the same height relative to the ground, but not the seat.

The ninjette bars are on top of the fork tubes, which do not change their height relative to the ground. Any solution that keeps the bars mounted to the top of the tubes will leave them right where they are to begin with. But when you lower, the rest of the bike moves down, including the seat.

The purpose of the blocks is to give the handlebar mounting bolts something to grab onto, nothing more.

The only way to keep the bars at the same height relative to the seat is to use clip ons. Two options here:

1) Get some with risers and mount them below the triple, or
2) Lower enough that there's sufficient tube sticking out on top to allow clamping of the clip on.