After one day of questing in Orsinium, I am very concerned about the drop rate of Ancestor Silk in the zone compared to the other crafting materials. I made no attempt to grind or farm specifically to gather crafting materials. I gathered from nodes I came across while exploring and questing. On my max level toon I am level 50 in Clothing, Blacksmithing, Woodworking, and Alchemy. If the resource nodes/drops were balanced I should expect to gather or deconstruct roughly equal amounts of crafting materials.
This is what I gathered or deconstructed yesterday in Orsinium:
13 Ancestor Silk
25 Ruby Ash
65 Rubedite Ingot
21 Rubedo Leather
27 Lorkhan's Tears (Alchemy Solvent)
As you can see, the drop rate for the Ancestor Silk was roughly half of the other resources, except Rubedite Ore, which was roughly 80% more prevalent than Ancestor Silk. I went into Rkindaleft and bumped into some guildies. We went through that dungeon at least three times, killing most everything. (Everyone was missing quest points, so we had to keep going back to complete everything.) I ended that run with a grand total of three light armor pieces of level V15-16 to deconstruct for mats.
I ran into very few Ancestor Silk nodes. I was just running around questing, not going out of my way to try to farm mats. As you can see, I ended the day with many more Rubedite Ingots and I found those nodes most often. This takes into account I have two heavy armor quest rewards that I can't deconstruct. (Put in bug reports on both.)
I also ended the day with several raw materials I did not have 10 of to refine: 7 Raw Ancestor Silk, 8 Rough Ruby Ash, and one Rubedite Ore.
I do have quite a bit of gold on hand, so I thought..."Hmmm, maybe since people can gather stuff now someone had better luck than I did and I can find some Ancestor Silk for sale in the Guild Stores." I went to dozens of Guild Stores and came up with a total of 4 Ancestor Silk at market price. (I did not include the ones I bought in the total above.) I found several more at DOUBLE the market price.
I recently reached V16 (yesterday, YAY ME!). I am running around in mostly level V14 gear that I was able to craft myself. By the end of the day I had enough mats to make myself the two V15 Kagrenacs Hope staffs I need. (Yes, I am making a PVP build now, since I found a partner to go with.) I will need 530 Ancestor Silk to make the set pieces I need. I would need 40 days to gather that much at the current drop rate for Ancestor Silk.
Have a heart! Give us light armor wearers some love!