What do you recommend for your offhand? Is it better soloing with nucks?
I'll give a simple version of how I use my blades.
I tend to use them for everything, but golem bosses, as their aoe can be deadly and I'll rather be safe and send light heals towards the tank.
There are two offhands you can use, but which you use depends on your ammy. If you have a damage ammy, use venom blade because of the regen, but if you are using hero ammy, use the ice/magic/fire blade to make up for the lack of dps.
So for soloing what I did was start off with bow and bolas. just fire away at the mob until it gets into knuckle distance. When it gets into knuckle distance, use rapid with your bow and switch to knuckles and blade. By doing this, you will atk faster than a rouge on a haste lixir which should finish it off before you take any real damage. This would allow you to regain some of the lost energy from bolas and rapid use allowing for almost no cooldown between kills.