Oh Bose, did you really have to kick off that discussion?
IMHO, don't turn back unless you have planned it, in detail. Yes, there are a huge number of variables which can increase or decrease the chances of success but how many pilots are competent/current enough to do it?
Whenever this discussion takes place, I always point people towards this
accident report which has some significant personal interest. Not exactly the same circumstances but indicative of how a professional can get it wrong.