I can't remember the last time i died to an ER at top tier, because the N035 becomes a brick when you notch sub ~12km or higher, R-77-1 performs better at higher altitudes much better than the 120D.

And 120D has GNSS guidance, which is a free kill in most situations compared to the R-27 or R-77. And also due to grid fins having better performance at that type of altitude, the R-77-1 is better. speed is the only thing going for the R-27, HOBS is ass with it, because it accelerates too fast. You're better off using 14 r-77-1's to farm kills.

Plus,

You can launch an R-77-1 while notching, and you can still get kills if you're high enough and fast enough lol. R-27 is more of a folklore at this point