Lovely initiative!
Just a question/issue: Why not benefit on everything with both single and dual pistols? If you don't benefit on at least the
discount for both single and dual, things are gonna be messed up. A simple example:
1) Buy Dual Handcannons for 300.
2) Sell one for 112
3) Sell the 2nd one for 375 (since you have no discount for the single one)
4) Repeat from step 1
What does that give you? Unlimited money. So, on AT LEAST the discount, benefit for both singles and duals. After all, if this perk gets added oficially one day, i see no reason why not to move over the pistols to this perk completely, thus, benefitting on all bonuses with both single and dual pistols would make the most sense. Then to promote duals, gives further bonuses like:
* A bit more recoil reduction with duals than for singles
* A bit more reload bonus with duals than for singles
* When dualwielding, you get a lasersight on the offhand pistol (Could be a Dual Wielder / Gunslinger bonus that granted at level 3?)
Also some suggestions for further perk bonuses:
* A "run & gun" bonus, which reduces the weaponsway from left to right when you move around. Could also be a bonus that reduces the movementspeed penalty when ironsighting.
* ZED time reflexes, meaning, when ZED time kicks in you get even more bonus to reloading, recoil and weapon swapping. But not damage. Something that also could be nice as a ZED time bonus is that when it activates, you no longer need to spam M1 to shoot, you can just hold in the button and the character will shoot the pistols at max speed
I'd also suggest to increase the damage bonus a tad, to like 50% at level 6. 28% is not that high of a bonus ya know.