Use the tables below and select the shorting bar distance according to the antenna you have. Then set them according to the illustration below

Two meter Antennas

5 element wideband 2 1/8"
All 8 Element yagis including 8x8 XP 3"

11 element FM band -2 3/4"
11 element SSB -2 5/8"
11 element XP-vertical and horizontal as above

222 MHZ Antennas

12 element 1 5/16"

70CM UHF Antennas

8 element FM band 4 1/8"

22 element SSB - 4"

22 element FM - 4"

Dual Band 2 meter-70CM Satellite Yagi

two meter section 2 1/2"
70CM UHF section 4"