I pulled the trigger and grafted, late.
Got the budwood October 24 or 25th cant recall but very fresh, taken in the past day.
The was forecast of a cold night (below 55) on Sunday 29th so I split the batch.
Did a few on the 27th with the intent of waiting until after the cold night to graft the rest.
The forecast was updated for two cold nights. Preferring to use the scions fresh, I did more in the 28 and then saved the last batch for the 30 and 31st.
By the end of day on the 31st all scions were grafted.
I will wait to see what worked best, fresh wood with a few cold nights or not so fresh wood with warm nights.
I looked this morning and almost all are still green. One has advanced the bud, opened a little - see picture below, but that could be the energy in the scion.
There are two that I believe may fail, they were in open sun and may be more burnt than anything else, they are turning brown on the exposed side. I will shade them and see if they come back.
Thanks all for the encouragement. If this works maybe I will try for November next year,
just kidding, I can't wait till spring and doubt I will have any limbs to graft onto after spring.
The one looking most pushed. Was veneer grafted onto a seedling and covered by clear plastic and placed close to house to minimize impact of cold snap. Grafted on October 27th. Two weeks ago.
By the way, I grafted 2 or 3 scion of the same mango onto each seedling. 1 or two veneer and a cleft.