@qaccy
I think you and I craft differently.
I craft for the diamonds in the MA. Which means I craft almost everything every six hours. I have never crafted broken shards. I only craft with blueprints if I need/want it. I wont craft with relics. I often dont have enough broken shards to craft with those. I only recently reached the point that I can afford to craft the PPs. I craft things I dont want or need then frag them and craft more.
I usually win about 500 diamonds a week from the Mystical Object(the golden chest in the MA).
Most recently I threw my diamonds at the Pilgrims Manor. Another CC producer(go figure)!
And yeah, spire matters! I gold spire in 2 cities and silver in a third. I still run out of CCs and frags. With this library I will have 3 libraries and 1 PM....I will start gaining a surplus of CCs! I am very excited.