Well, you are ahead of me on that one! That is the one thing I have not been able to do with my boy dog. Of course, it doesn't help that he was totally brutalized on his first nail trimming event.
I have tried EVERYTHING. We even have tried drugging him. The only way I've been able to get his nails trimmed is by having the vet anesthetize him. Even they can't do it! They had 4 people once trying to hold him and give him treats. It didn't work. They got one nail. All this for a 6 lb. Chi! The last time I tried it, the vet came out and told me they were very afraid he was so stressed he might have a heart attack!
Anyway, congrats - I'm glad you have made progress!
I have to do something. I even ordered the peticure. It's the one nightmare with my little dogs. The girl does fine. But not the boy.