This was just brought up on our local Facebook group, and I thought it was interesting enough to point out.
As I think most of us know by now, you can spend an accuracy before you reroll the dice pool for VG. This removes the acc from the pool, allowing you to keep the accuracy and just reroll the rest of the pool.
This brings up an interesting point on timing, though: if you do this, you have to decide which token you're spending it on at that time, before you reroll the dice pool. It's a bit of a subtle distinction, but it could definitely come up.
Say you're shooting at a VSD with 1 hull left, no shields facing you, and three shields in an adjacent zone. If you roll only one accuracy and three damage on your first roll, you have to decide: do I shut down the one brace and hope to push out one more damage on the reroll, or do I shut down one of the two redirects and hope to roll a second acc on the reroll?