G'Day ChingHope you're right about Monday, would you care to...

G'Day Ching
Hope you're right about Monday, would you care to share the positive vibes on Banda that you have been picking up?
One thing has me puzzled and gives me some confidence
which may be misplaced, why stop drilling with 150 to go to TD and withdraw 2200m of string, replace the bit just to drill the final 150m. An 18 hour time turnaround at a cost of near $1m.???
Any technical gurus care to share with us the number of practical reasons that would initiate these actions.
regards
Abuman