Pushrod diameter question

""I’m using .120” wall 5/16” pushrods""
- How much spring pressure are you using with these pushrods?

I too have used them but with only 130lbs/370lbs valve springs with no issues.

Is anyone using the 5/16" (heavy wall, Manton Grade 3 or Manton Grade 5) pushrods on solid roller valve springs (220lbs/540lbs) for reference?