Ok, so for the last 2 months I've been getting placements in all the top HA sites in my niche. It's costing around 1,200-1,500 a month. It's about 50/50 do-follow/no-follow and I'm mainly using naked urls and branded links. I do see a bump of NTH to top 30-50. But I need an extra push. I've read lots of blogs and get lots of mixed answers, some says blast it with 400 PBNs, some say using PBNbutler for social signals. Maybe I'm too impatient. My niche is low keyword volume but very competitive, lots of IM are going for keywords with <200 monthly searches.