20 on 5 off for me, also might want to try and up the strain. Try strains with 20%+ THC like
Indica: Tahoe OG 23-25%(I stock it)
Vanilla Kush 24%(Growing for 2011 Jan Harvest)
Killa Watt 22%(Growing for 2011 Mar Harvest)

Sativa: Titans Haze 25%
Vortex 22%(Looking into breeding)
Ice 20%
Grapefruit 20%(Growing for 2011 Harvest)

Hybrid: Critical Jack 21%
Pineapple 99 20%

Hope this helps man
One Love...
:rastasmoke: