Fair point.
I would still argue investing less is Resonance is often better. You can still pump out L6 sprites when you need with lets say a Resonance 3, damage is just physical. But lower resonance means you probably have more edge/resources. Drugs, stat boosters, platelet factories, edge etc. are going to the physical fade less of an issue. But even better, is keeping a stable of easier to compile/register sprites that can help not just with diagnostics, but other boosting CF and to teamwork with deckers. At Resonance 3, you can still get all of the meaningful echoes if you want (skinlink, FFF, and the a control rig echo) without raising Resonance.