It would be dishonest of me to promise you anything. I can only say that I have never attempted any mind meld on a human that has had any lasting negative effects on them or myself, and I certainly have never incapacitated or killed one -- nor have I ever thought any of these a real threat during the process.
It is your choice to take my offer or await a safer or more certain option. I would prefer if at least Dr. McCoy were present for the attempt, but I will allow you to choose the circumstances.