We've had a wet & humid year.
I took the grafting tape off of the Thai Soco after 4 days and it worked well.
I left this flat graft taped for 8 days and it had started to rot.
I sprinkled fungicide powder all around the graft circumferance. We'll see if it arrests the rot.
I hindsight I should have undressed the graft after 4 or 5 days.
Live & learn.