Adjusting Argentium part position while soldering

I’m using Argentium almost exclusively whenever I use silver, with
excellent results. However, during soldering, I occasionally need to
"nudge" a piece if it has moved slightly, etc. No problems with
sterling. With Argentium, it tends to leave a dent if I touch it
when it’s hot (even below soldering temperature). Any suggestions?

Thanks for any help.
Jamie