Acknowledgement Process

Does anyone have a streamlined acknowledgement process they are happy with and would share?  We are currently stuck in the cycle of many letters that contain a ton of customization.  I am looking to create a more streamlined process that gets the initial tax letter out the door a whole lot faster.  My VP is totally on board (this is one of her operational thorns) but I know I am going to get push back from my front line fundraisers.  Any tips or tricks to navigate this? Thinking a system of secondary follow up based on gift amount that could be easily customized, like a phone call or note card, that comes after the tax letter (receipt?) is out the door.  I would love any feedback or advice you can offer.