It`s good to hear from you! Ah, you are having the same problem...I feel your frustration. I`m going to try rewarding Chibi only when he goes closer to the middle of the pad. We may try a target too. I`ll give you a progress report.
And yes, it is funny how my little boy too looks so proud of himself, even though he is just missing the pad.
There`s hope though, recently, I met a lady with Dachshads and she said that they had the same problem. Since they are so long they thought that they were on the pad, but they weren`t. Unfortunately it took a year to fully train them! If she has any advice, I`ll post it here.