OEM beadlocks and spacers or…

OEM beadlocks and spacers or aftermarket beadlocks?
So…. I currently have DWT diablo beadlocks @ 14.5 lbs and stocks are 10.5 lbs. Of course the less weight on the wheel the more power it’ll have so I’m trying to see what makes most sense.
Is a 4 lb. Difference alot ? Actually it would be less since I would need spacers with stocks to get the off set. So would 2.5 about lbs make a big difference in power?

Also are the stocks strong enough and I would benefit from using them due to the weight savings?
It’s such a shame to not use the pretty wheels that came with my xxc. If I kept my diablos I would maybe color match the rings.
What do you guys think about the strengh, offset, weight difference and power loss?