I have a selection of and use only steel bushings. If you are doing full length sizing using a neck bushing die, I doubt you'll be able to feel the difference. If you are neck sizing but not sizing your case body, the amount of force required when you are using steel is so minimal, (to me) making it easier would have no practical effect. When I FL size, I use IPA/lanolin lube and it works just fine. When I neck size only, I use no lube although my cases are very clean and have been tumbled (last) in walnut medium treated with ~1 teaspoon of mineral spirits / NuFinish 1:1.
If you are going to neck turn a batch/group of brass, the reason to do so is for uniform neck tension. If you use good brass, your neck wall thickness should be pretty uniform - more than good enough for the average shooter with OCD. If you are an extreme long distance shooter with OCD, you will turn necks and anneal your necks every reloading cycle.
If you are doing load development for precision, you will likely only develop the load using 1 specific headstamp... preferably a headstamp known for quality and consistency (Lapua, Peterson, Alpha, etc.). The more consistent your cases, the more consistent your hand loaded ammunition will be. Mixed headstamps (even if you turn all the necks to be the same) and precision don't go together...
Best,
- Reo -