Replying to Help mounting 4frnt VCT's

i just got my 4FRNT VCT's in the mail. they are 175
i need these mounted before ski camp

i ski alta utah. so i rarely ski park but i do hit up the park and am also going to camp this summer.
im 130 5 8 but i donno how that will matter but just incase

i want to be able to rip pow but also have good switch skiing and
good for bc jibbing and kickers and groomers and park(sometimes)

should i just mount recommended which is like -1.5 inches from core center
i was thinking maybe +1 from recommended

i also need to know how to tell the mounting guy exactly how to do it
i live in texas so i donno if he will understand so i need to be able to
explain exactly what i want