The guarantee has strict rules, and forfeits are permanent. Read this before making any changes to your vouches.
Unvouching: permanent forfeit
If you unvouch your tokens, for any reason, at any time, the guarantee on those tokens is immediately and permanently forfeited. This includes if you decrease the vouch amount partially - any partial vouch removal is automatically forfeit. There is:
No grace period
No way to reinstate by re-vouching
Either your tokens are vouched and protected, or they are unvouched and unprotected. Re-vouching after an unvouch does not restore the guarantee.
If you're unsure
Contact support before taking any action on your vouches. We can't restore a forfeited guarantee, but we can help you avoid forfeiting one.