So in my opinion when starting or restarting a stall count there has to be a one second gap between the start of the number and the last number utter prior to the stoppage or between the number (0) when starting a stall count
That is incorrect.
You can say “Stalling one” as quickly as possible. You then must leave a second between when you started to say “one” and when you start to say “two”.
And when restarting after a stoppage there is no requirement to leave a gap between “Stalling” and the number you are supposed to restart on.