I usually climb alone due to my working hours, but later on during the week I discuss the new routes in the gym with friends, and usually what happens is that I find out that I had no idea what the intended beta was, and that I completely broke the intended beta. Sometimes I make it easier, other times I make it much more difficult than it's supposed to be.
Usually my friends are in the gym when the routes are being set, so they know the beta, but I am not, so I almost never know the intended beta, and since I climb alone, I usually make it up as I climb. So, it happens pretty often.
