DomfranciscoOfIfrit wrote:
The real answer to improve your plates and rare drops chances is to complete all VW bosses. With all VW periapts plus the cell bonus, you're increasing your chances to over 700% (iirc) drop rates. (700% of a .01% chance increases drop rates to 7% for example)
The periapts that increase spectral alignment add only 25% each for a bonus of 50% for blue and red. Your max alignment without the periapts is 500% and 550% with them, which means a 50/50 chance of either 5 or 6 items (if you use cobalt cells). 550% is better than 500% but nowhere near 700% Also, only the periapts of concentration affect the number of items you get.
There is actually very little need to defeat every single VW NM because many of them drop the same periapt and some of them only drop an atmacite. Completing the storyline is good for Provenance Watcher access but won't have much of an effect on your drops.