E-signature vs Wet Signature for Remote Locations

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We have alot of contracts that are located remotely and we are implementing the onboarding module and going live very soon.  We are currently obtaining wet signatures and plan to with Onboarding.  It would be alot more time efficient for us to only use e-signatures for the onboarding paperwork.  Are you using e-signatures only with Taleo Onboarding? or are you obtaining wet signatures also? I want to get an idea of how common it is for companies to use e-signatures only.