Right after I do my lessons for kanji/radicals I drill them using the self quiz script.
Drill them for a couple times AFTER youve answered every answer correctly.
I also pick one vocabulary related to the kanji and use that to help me remember the reading - learn the word seperate from the reading as you will come back to it later anyway (once you unlock the vocab later).
And if you get an answer wrong read the mnemo again in full not just what the right answer is.
top tips! ;D