Overheating issues

Shoot the top and bottom rad fittings, not the hose, with a temp gun.
Your rad needs to shed 50* to be adequate, 30* is very marginal, don't play in traffic.
If it's not shedding enuff, shoot areas of the rad, about 1/2 way down, all across, - cool/cold areas are plugged tubes, the more/bigger the cool area, the bigger your problem .
You might pick up some info if you search "overheat", this subject is flogged to death every Spring.
Good luck .