Hi guy's
My usual set up for Di-7 and boobies is ...... 2foot from fly line to first dropper and another 3foot from dropper to point fly ...... or 3foot leader for single booby.
Booby colour's will range from..... yellow/white, orange/white, coral/white, coral/yellow, coral/peach and white, pink/white, pink/yellow nice bright colour's for the top dropper
Point fly...... black/green, black/sunburst, black/green and red, olive/sunburst, olive/black, claret/yellow or just any plain colour's.
You could even try a midge-tip with glues/nymph's set three foot apart.
All fished nice and slow.
Lake location would be all along the Northshore, Green pool to Bill Smith's bay and the Gabion's.
All the best and let us know hoe you get on