Rapidly Overestimating Escalation of Delta V?

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I noticed as of recently that when I guesstimate the amount of DV needed to get somewhere my dV-budget tends to escalate like a row of dominoes, it just goes larger and larger as I construct the rocket, ending up with several thousands extra dV that I don't really need. Anyone noticed anything similar?

[Red Iron Crown]

Not really. I generally stop building once I've met my delta-V budget plus some safety margin.

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Not really. I generally stop building once I've met my delta-V budget plus some safety margin.

Guess it's just me being a Buckshot Rocket Enthusiast