Hi guys just some more annoying questions:
1. Does Druid or shaman work better in this comp?
2. Which rogue spec works best in this comp? (I'm currently playing combat)
3. Is this comp any good? What are the strengths/weaknesses?
4. The main comp we struggle against is turbo, any tips?
As always thanks in advance 
1.) Druid is a more offensive healer and you can play more aggressive (pushed in) with druid healing. A shaman is a more defensive or passive healer but they supply mastery buff which is in turn a massive increase in damage for your team compared to having a druid healer. Each has their advantages

2.) All rogue specs work to an extent with this comp but the higher damage specs (mutilate/combat) work best.
3.) Rogue/Lock works but has some trouble verses double melee as you already learned. A strength is that you can pretty much swat down any caster cleave with ease.
4.) Turbo is a tough matchup I would suggest targeting the healer of the turbo with a step kidney into a coil perhaps, very unorthodox but it works wonders. This matchup can be annoying as the rogue because of the lack of pressure you get on the DPS classes of warrior and enhance. Minimize globals wasted on the DPS and target the healer as often as you can for optimal games.
make it fun yo !