I have adopted a little system that seems to be working out for me. I barely breed with single elements. I tend to use hybrids only I believe the more elements are in the den the better outcome you can expect. I never use the same combo more than twice either I think certain combos work with some users and others not. with lacewing some said tiny and diamond 2nd try this didn't help me so I come back and check combos tiny and tiny lacewing first try. winter and diamond reaped success for many on 2nd tries it however didn't for me winter and water first time. I just switch combos all the time and I rotate on a weekly basis to prevent me from getting negative if I don't hit my mark.