Hot racing driveshafts for the nero worth it?

[RCMANIAC147]

I've been breaking my neros driveshafts (outdrives and wheelaxles) and I noticed hotracing has two different drive shaft upgrades for the nero, the CV splined nero driveshafts, and CV steel slider driveshafts. I was wondering if anyone has had either of these before, and if so if they would reccomend them.