I keep seeing TWFing rogue builds. It's crazy not to. If you have a 65% chance to hit, fighting with two weapons gives you an 87.5% chance to land a sneak attack (and with crits, you have a 94.5% chance of doing 1x sneak attack damage!; math based on getting a crit with your first hit).Now, I think a TWFing rogue has an interesting trade off in whether or not they use their off-hand to try to get a little extra damage in, or if they want to use it to disengage with their cunning action, but I feel like TWFing offers such a damage boost over using a single weapon that I haven't seen anything other than TWFing or handcrossbow (expert) rogues.I thought of a crazy way to incentivize going for a single rapier/light crossbow: what if your sneak attack damage was equal to your weapon's damage die?With a quick calculation, a rapier/light crossbow rogue would deal 81-92% of the damage a dual shortsword rogue will tend to deal (without factoring in advantage; the rapier rogue would benefit more from advantage since their first attack would be less likely to hit and thus be in less need of a follow-up attack). They're still dealing less damage, which would offer a trade off for having their bonus action free for other things.How do you think this would play out? How would you abuse it as a player?