I would extend cycle to 14/16 weeks to really experience the benefits of primo. I personally think you can drop the 6% sooner if diet is dialed in correctly. Quite honestly, there’s no reason why you can’t drop to at least 15% BF then begin your cycle by March to hit the 10% range by the summer while increasing lean body mass. This cycle is too short and you can achieve dropping BF without a cycle realistically as makwa is suggesting. Also, under his forum posts he offers a few approaches to take exactly at your state such as decreasing rest time while increasing reps, higher intensity training. Once you hit lower BF, throw in that cycle and you should be able to hit 80kg, but denser. For context, that exact cycle, I gained 11bs but dropped about 4% bf but I also added Anavar. Be safe on your journey.

https://www.eroids.com/forums/general/general-talk/i%E2%80%99m-skinny-fa...

https://www.eroids.com/forums/general/general-talk/wasting-your-cycle-on...

Dropping from 18% to 12% should be a piece of cake. Don't need steroids for that. That is 100% diet. Just wasting a cycle to do that. Going from 12% to 6% then a cycle would be warranted. No point sacrificing your health for something that can easily be obtained without AAS. Remember steroids are not fat burners and don't make up for a shitty diet. You don't need any extreme dieting to go from 18 down to 12% and there shouldn't be any muscle lost. Taking it down to 6% BF is going to require some more extreme dieting measures where the loss of lean tissue now becomes a real issue and AAS can help spare that tissue. Save the cycle for when you want to get really low bodyfat or gain some muscle. Also, that is not a cycle I would recommend for a newb or for anyone for that matter.