I rarely choke and rarely come back
My biggest comeback would be winning 06 75 76 in April. The boy is a bit stronger than me, and he had beaten me 3 times so I was delighted to win tis one. First set I got crushed but in the other two sets I just made sure I fed him no forehand and ran everything down. That was a good match
In practices though, I have come back from 1-5 several times.
When I don't really feel like playing, that's the score I usually wake up at.
Biggest choke - Losing a match from 3-0 40-0 first set, 4-2, *5-4, *6-5 second set => 36 67