The 21-year-old pair extended their existing deals until the end of 2015 on Monday, along with Jackson Trengove and Alipate Carlile (until 2017), and both insisted they now had their injury concerns under control.
When they were drafted to the club with picks 8 (Butcher) and 9 (Moore) at the 2009 NAB AFL Draft, Butcher was thought to be the best young key forward in the land and Moore was a highly rated hard-bodied midfielder.
Together, they were seen as keys to the Power's future success.
But Butcher's hips and back and Moore's groin and hamstrings have restricted them to just 36 games combined in the three seasons since that draft.
While a recently cracked bone in his wrist was another minor setback for Butcher, he said his hips had handled each challenge perfectly since Christmas.
"The hand's not going to keep me out of footy for too long at all…the hips are actually feeling fantastic," Butcher said.
"I felt like I had a really solid six weeks post Christmas throughout February…the hips have so far pulled up well from everything and each step we've taken they've coped really well.
"The first three years probably haven't quite been what I've wanted and I haven't been able to get out on the track as much as I need to, but hopefully, touch wood, the next three will be a whole lot better.
"When I do get out there, whether it's this week or not, I'm pretty confident in the body and ready to go."
Moore, too, said he finally had confidence in his body after dealing with persistent groin and hamstring injuries.
He managed 11 consecutive games from rounds 10-21 last year and said that consistency followed through to pre-season.
"Having the back end of the season last year being able to string a few games together which was really pleasing and definitely has gone onto this pre-season," Moore said.
"I've been able to get out on the track more times than I have in previous years and so that's going to help me for this season and for the next couple of years.
"With the ongoing rehab side of things of that and getting my strength back (into legs), I couldn't be happier with how I'm feeling."
Harry Thring is a reporter for AFL Media. Follow him on Twitter: @AFL_Harry.
