Nope, the thing is i started with really high mecha based skills, i had gunnery 5 and piloting 5 from the start, then i gained gunnery 6 after my first few thousand XP, then i realised it was better to up my important skills to level 6 first then have the "real life XP" level it up to 7(because it takes 800 xp as opposed to like 500 for level 5-6). Thats when i leveled up piloting to 6.
The only skill i dont use at all is mecha fighting, artillery and the one for attacking with mecha melee weapons, and thats because those 3 were the ones that i got from combat piloting. I wanted a job that is a mecha pilot/mechanic mix with starting +s of gunnery, piloting, repair and engineering, but no such luck

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Ive got some other stuff i rarely use, like small arms, but sometimes i do get personal scale missions.
Ive only just broken the 10k barrier for my 2nd talent and i have 80+ renown and am being asked to attack 4-5 million PV oints of mecha. My XP just isnt scaling at the same rate as my renown is o.O. My zerosaiko only has some modified stuff, like some armor without thrusters(lower weight, i never use thrusters anyway), a beam shield that replaced one of the standard shields(still not sure if this was a good idea), weapons, a class 10 sensor and a class 7 targetting comp. MV -2 TR +0 S +6. Not sure whether i should try tinkering with modifying components(or how).