Cams should be ready in less than 8 weeks. The only cam make I reduced the temp on prior to ripening did not fully ripen. I made several and tried one at the correct time, it wasnt aged enough, but didnt taste too bad. Tried another at approx 8 weeks, and it wasnt developed enough either, but again, taste wasnt bad, just wrong texture. The last one I let "ripen" until about 12 weeks and it still wasnt developed properly and tasted...horrible. I felt at the time that I reduced the temp too far way too soon and impeded the paste development.
For your next make, I would suggest you leave the cams in your cave in a container the full 4 -6 weeks it takes to ripen and then wrap once ripened and move to your fridge. What works for me is 50-52F and 95% RH and about 4-5 weeks depending on thickness.
Edited to change the first sentence.