To give an idea on weights: NFC DS 6100 blank, 6 ft 10 inch, called "Medium" power by NFC, measures ERN = 12.6, which is hardly what most would expect from a medium power blank. Weighs 1.6 oz. Fuji DPSSD size 17 seat and lock nut weighs .84 oz. 1 inch exotic burl ramps off each end of the seat + butt knob of same material weighs . 66 oz. Guides weigh .141 oz (KLH 16-8-5.5M, 2 KB's, 4 KT's, the 16, the 8, and one KB are stainless, the rest titanium). Rod so far weighs 3.245 oz. The guide epoxy and the epoxy at the grip needs to be added yet. So this rod will come in probably just under 3.5. A lighter seat and lighter ramps/butt knob would easily be possible to bring it down to 3.0. BUT, this blank is probably not powerful enough to be called ML power, IMHO. A Point Blank at about ERN 16.2 would weigh 1.7 oz. ERN 19.8 would weigh 1.76.
The problems with most claims of sub-3.0 oz rods is 1. The builder doesn't know the actual power of the rod, and most will most likely be pretty low. 2. The compromises to lower the weight will cost ergonomics. My ERN 19.8 Point Blank 7 foot complete rod with size 17 Fuji seat weighs about 3.6 oz. Has good power and fishes great.