Timing help needed

yellow rose said
If you mean .005-.010 on the IAB’s I think that’s a good idea. I wouldn’t be afraid to get into the mid .080’s if you have to.

Or, you can reduce the IFR’s .004-.006 and see what you get.

Yes, .005 -.010

Seems easier to try the IAB since it's on the outside. Is changing one more beneficial than the other.