I made the mistake of not using any flow media and my part didn’t fully infuse before the resin started to cure. After the part cured I place a new resin inlet around the dry section and infused that small section. I don’t know the out come yet. I was curious if anybody had tried this and what was the outcome?
I did this once and the result was perfect! You couldn’t tell.
For a cosmetic part it will work, if you have perfect vacuum and if I am right you used the MTI hose. So if it was tight and you had a perfect vacuum you will not see it.
Demolded the part this morning. Turned out better than I thought it was going to. I did use MTI hose and made sure not to demold any when I positioned the new resin line. 
Thanks for posting the after pic!
Question regarding this, as I’ve just had a similar problem. Hot day, resin kicked too quick.
Did you rebag the whole part? Or did you just open the bag and put the resin feed in, then close it again?
I guess it really just depends on the size of the piece and whether you feel like bagging the whole part. I have rebagged the whole part but in repairs I often just bag the area to be repaired and then do the infusion on the area that needs it.
A trick I found to help out when you have a close out is to have a hypodermic needle (the biggest size you can find) attached to the end of a vacuum line. When I would see a dry spot or close out I would unclamp/turn on the vacuum to the needle, then wrap a blob of tacky tape around the end. Then I’d stab the needle into the dry spot, using the tacky tape to seal the needle into the bag. Generally the resin will be drawn to the new vacuum. Once wet out pull the needle out of the tacky, which will seal the bag.
This won’t help much with premature curing.
thats an awesome trick! thanks for sharing that!
-david
But it needs some practice! It can happen that you loose vacuum and then the part is lost.
Better take care of your resin flow and prevent dryspots.
If you are careful with the tacky tape when removing the needle you shouldn’t have too much trouble. To be on the safe side, a small bit of bag on the tape will stop the tacky sucking in or getting a pin hole.
But you’re right, it is a last resort. Aim to not get dry spots but it’s there if you need it.