Quad would certainly help, I'm just cheapass (my only B-Die kit) Those timings are pretty doable on most x299 IMC's with A0 sticks. A2 doesn't seem to like it too much though. It just takes ages to find proper sub's to gain actual effi.
I hate this combo!!! Couldnt even connect both k-probes at the same time, so benched 50% blind (guessed if CPU is cold enough and GIGA boards hate me!!) :))))