Upgrade overhead

[abcoathup]

Hi @realisation

Welcome to the community

For transactions there is a small gas overhead using functions via a proxy:

Gas overhead for proxied function call

Say, have you done any estimates on gas overhead for proxied function call compared to call directly to the corresponding function in the logic contract? If so is there any variance in or dependency of the overhead to be aware of when developing smart contracts with ZeppelinOS?

Calls (reads) are the same as with a logic contract, no charge.

I tested using a simple contract from the documentation and deployed to a public testnet.

You could do this too if you wanted:
https://docs.openzeppelin.com/sdk/2.5/first along with
Deploy to a public testnet using OpenZeppelin SDK