On the mandolin, having new wide frets and a more comfortable (rounded V) neck profile on my main playing mandolin has encouraged me to do more hammers, slides and pull-ups. And it has encouraged me to move forward with some longer, more difficult classical pieces.

On the banjo, I became less worried about playing in the highest registers, as a result of playing mandolin, plus I've learned to flatpick from mandolin, which I'll apply to tenor and plectrum banjo once I retire...

In the same way, I've become more likely to slide into notes and swing a bit more deeply on both the mandolin and the banjo after playing dobro.

Both the mandolin and the dobro have encouraged me to continue emphasizing dynamic tone and volume control on the banjo.