I find myself going outside of the logistic area to set up a request for a quantity of less than a stack to prevent bots from giving me a full stack anyway because they were already on the way before I could adjust the slider down from the default value. The aforementioned trick doesn't work on requestor chests.
A simple OK / Go / Apply button when making any logistic request would prevent this.
Logistic Request Apply Button
Moderator: ickputzdirwech
Re: Logistic Request Apply Button
There's an option that sets logistic requests to default to 1 item, instead of defaulting to 1 stack. Is that what you're looking for?