This is how i dump dimes. I only dump coins at TD since its free.
I never dump dimes and halves at the same time. Sometimes i dump them straight into the counter after taking out the top. This way it ensures that the coins dont get stuck. I have never had any tellers tell me not to do it, and i have seen many people who dump coins regularly do the same exact thing.
After i dump the dimes, i dump at least $100 in halves. This ensures that they will have to open the machine for me. After they open the machine, i always have dimes or halves stuck in the reject tube which i can not always fully access from the outside, especially if the tellers did not install the bag correctly and it blocks the exit.
Since i have started doing i dont believe that i have been shorted. I dont count the dimes i dump before i go to the bank, so if i am short 1 or 2, i just assume that one of the rolls was short, as has happened before.
I never dump pennies and dimes together. I had an incident that my dimes were counted as pennies, and of course it was the one day i also decided to dump some pennies. I have not done that since.