Hello,
Not enough info to comment on your scenario(s), but here are some things to think about:
"174 yds" - course? hole? surface? elevation?, wind?
"full 190" - club? spin? ding offset? these can seriously affect distances and repeatability.
"most shots" - need more definition here, particularly with starter balls, e.g. most "dinged" shots? most long approach shots? drives? 90 out of 100 shots?
"10-15 yards over...15yds short" - again, distance is not very meaningful w/o considering all of the above. If you calculated 30 yds over, would that solve your problem?
Go into practice mode and use mulligans to gather some stats on your shots. Choose a course like Bethpage Black: 1st couple holes in back 9 have good driving fairways with a long and short approach. Repeat drives/approaches 10-20 times. Consider dings/near dings as most significant.
Expect more variation with starter balls, even if you use higher end clubs. There are lots of good forum suggestions if you decide to move away from them.
"Computer offers..." I would ignore computer suggestions.
Even with the best equipment you will occasionally get WTF shots, so if you get 5-10 consistent shots and get one that's say 20-30 yds off (all else being about the same), just chalk it up as a flyer and ignore it.
Good luck!