OK seriously, the best ways to keep a plant as short as possible are:
1) Choose the appropriate genetics. Indica dominants have shorter internode spacings.
2) Choose lighting with a high actinic component. Veg-spectrum LEDs have been reported to work. I favor T5s, which can be mixed&matched to provide your spectral needs. Since you're choosing CFLs, I'd supplement with aquarists' actinic-spectrum T5s, like the UV Lighting "Super Actinic" bulbs ... cn