For those big-ass AT8410a shockmounts, I don't think the Vark bar is a good choice - it's pretty small. A think the best option for full-size mics + full-size shockmounts: single KM235 + riser. It'll will work for XY, DINA, DIN, ORTF, and everything in between. You'll probably need to add a 2nd KM235 bar, per my previous link, if you want to run wider spacing, like NOS or other variations.