It is very hard to get rid of the negative skills if the whole armor is equipped without having a charm with skillpoints for sharpness:
* The best way to get rid of the negative skills is to use the Helmet & Mail from Ceadeus+ and Vambraces, Coil & Greaves from the ordinary Ceadeus-Armor. Then you have HG Earplugs, Sharpness+1, no negative effects and even 4 slots to use.
* Another possibilty to get rid off the negative effects is to use a "Jhen Mohran+"-Helm with the rest of the "Ceadeus+"-Armor. Then you equip one Handicraft Jewel (+1Handicraft/-1Sharpness), two Earplug Jewels (+1Hearing/-1Protection) and one Protection Jewel (+1Protection). In the end your skills are HG Earplugs and Sharpness+1 without the negative skills and there are still two empty slots to use.
* A further possibilty is to use Vangis Greaves and low rank Ceadeus Coil with the rest of the armor, and equip a Handicraft Jewel. In the end your skills are HG Earplugs and Sharpness+1 without the negative skills and there are still five empty slots to use, but your defense will be two points lower (after the last upgrades) than the first possibility.
* Another way is to use Ceadeus+ Mail and Vambraces, and Ceadeus Coil and Greaves. This combination gives Sharpness +1 and HG earplugs, while leaving the helmet, talisman and weapon free to customise the set.
http://monsterhunter.wikia.com/wiki/Ceadeus%2B_Armor_%28Blade%29
voilà le copier/collé et le lien... flemme de traduire, mais 'est pas compliqué à comprendre 