clonining problems

Ive been trying to clone a several mauji wauji plants, have tried rockwool cubes, oasis cubes, humiditity dome, heat mat, gels, powders, and liguids. I even spent the money on a e z cloner but still nothing. The mom i want t clone is 2 ft high big and bushy. It has been ready to flower for a couple of weaks but i dont want to flower before i clone. It was grown with hydro using general hydro nutrients, but i never switched from the higher N to the lower N fertilizer (dark res to green) i dont remember the exact names. the first has a N value that is several times that of the second. Could this be why i cant get any clones and can i fix it?
thanks

ok well start to spray the plant with regular water about 2 times a day for a week.. then take your clones and put them in a container with water in it.. maybe a drop of superthrive if you have it.. then replace the water every 2-3 days with fresh water and make sure the container doesn't dry up.. if you have it you can put an airstone in the glass or w.e you have them in to give a bit of oxygen.. this method works good with the least amount of effort but it takes about 2 weeks for roots to come out.. i used to use this method wen i couldn't clone.. now ii just use a bubble cloner..