After my last session when hanging it to dry I saw this on the knee of my xcel offset 4/3:

On the outside is the knee pad, on the inside is a liner. The hole is the neoprene between the 2 layers... I don't know how I did this, but is this something I should be able to manage myself, or is this something to take to a shop? I do have that awful aquaseal-toluene repair stuff. If I do try to repair it, I clearly have to cut through the liner to get to the hole. How would the cut be fixed after repairing the hole?
The darn suit... I wondered if it was borderline too small when I bought it and taking it off is such a workout. I wonder if I did it while trying to wrench it off over my feet. Don't suppose anyone has any tips on getting them off without being too hard on it?
Thanks