I have the EXACT same problem with my younger son. Last year what I ended up doing was doing EITHER the fact practice OR the cards but not both on the same day. Also, I crossed out problems here and there that I knew he knew how to do "cold". Then every now and then when the material would come up again, I'd have him do a few of those "I can do these blindfolded" type problems and cut out something else that he can do "cold". It worked well, shortened our math time and the tears left, and he was still learning and retaining and had the spiralness that CLE gives.