First...
Why have a 2nd Face and T.O. Process?
Making sure your customers all get a 2nd face or T.O. in a sophisticated manner before leaving is NOT just for you to make every deal. It is a necessary process to make every deal. You will absolutely never make every deal, theres always a new place to find deals. You will absolutely make less deals than you will with a 2nd Face/ T.O. process, than you will without a process for 2nd Facing your customers before they leave. This should be common sense. So, even if it was just for you, you should do it.
I will argue, this is a customer service oriented process. You can NEVER intervene into your sales process too many times to check in on how its working for your customer. You can ONLY do it at the wrong time. Ie: A waiter not waiting for a break in your conversation or interrupting somebody at your table, or us doing the same to our own people when we walk up to their table without eavesdropping first. A great waiter eaves drops on their tables. A great GSM or SM or even GM that is managing their sales floor does the same. They interrupt strategically and check in on the customer. This is customer service. A T.O. or a U-Turn call and every other similar process is customer service. Put yourself in the customer shoes. Done properly, are you ever offended when leaving a restaurant, if the manager introduces himself to you and asks about your meal? It all depends on how its done right? Most of the time, if done properly, this makes you feel special. Yeah, you just got T.O.'d restaurant style. They do that so you come back. They know it increases the probability of your returning and spending more money soon. Just like we study our businesses metrics.
To conclude this introduction. Make sure you have a 2nd Face/T.O. process. We are selling the 2nd most expensive thing people buy. We can never check in on the customer too much during the steps to the sale. After you sell your customer, the steps to the sale start over. You are always within a sales process between you and your customers. You better be and you better get great at checking in on it throughout their entire journey. Always 2nd face your deals!