If you swap out the CV's to the RCV's the possibility of breaking something moves up the chain. In an H3's case the front diff.... I've got a CI front diff on my Alpha, but I'd rather break a CV vs front diff any day!!!
I used to so laugh at people in Jeep's especially with a rear Dana 35 axle. They'd break a rear drive shaft, upgrade the rear drive shaft, then twist a rear axle shaft, then they'd beef up the axle shafts only to blow the gears out after that. With the time & $$$$ they spent on all of that they could have dropped in a Dana 44 or 60..... Point is if you beef up one part, the weak link will just move down to the next part...