Just a thought...could you do it while he's in the shower? If your Dustie is anything like my lil guy, once in the shower they just kinda turn to mush. I think I may have to try this myself.
We've only had Tuffy 6 weeks or so & the vet did his when he had to gas him to get a splinter from a sandspur out of his paw
so I'll be learning myself how best to get the job done. Good luck & let us know what works for you.