2019 Trek Powerfly FS 5 first ride and Handlebar question

#1
Picked up a 2019 Trek Powerfly FS 5 on Thursday. Took it on my first ride today. Pavement from my front door for a couple of miles then another 6.5 miles on gravel/rocky/washboard/washed out dirt road up to a radio tower peak nearby which is at 7600 feet. Actually I only made it to 7000 feet (total elevation gain 2500 feet) then turned around because I was using turbo most of the way and computer was showing I had 3 miles left in turbo. Averaged 7 mph uphill. I think I could have made it to the top. I'll try again in a few days. I rode the dirt back down with the motor off. Averaged 20mph downhill. When I got back home computer showed 13miles for the trip and Range in turbo showed 4. Hmm...I gained some battery life? I'm not a mountain biker. It was a bit scary coming back down with all the loose gravel and rocks. My butt was way behind the seat and my arms stretched to keep my weight on the rear wheel. Here I am 59 years old and thinking it would really suck to fall and hit those rocks. So I didn't fall.

Anyone with a mountain bike (in particular a Trek Powerfly) raised the handlebars? And maybe changed them to slightly swept back like on the XM700? I've been riding the XM700 for 2.5 years and am spoiled by the riding position.

I actually feel pretty good. No back soreness or arm soreness and feel I could do it again right now. So I might keep the handlebars as is for now. And maybe ask the bike shop what they think. I'm wondering if the raised swept back bars would make the road surface I was on even trickier?
 
#2
I have an XM 700 and a 2018 Powerfly 5. Friday I had an extender installed to raise the handlebar 3" on the Powerfly. I am not as upright as the XM 700, but it is an appreciable change and very inexpensive. Part was $30 and install $15 done in about ten minutes at the shop. I am 70+ so I appreciate a more upright position after riding without the extender for almost two years!
 
#3
I have an XM 700 and a 2018 Powerfly 5. Friday I had an extender installed to raise the handlebar 3" on the Powerfly. I am not as upright as the XM 700, but it is an appreciable change and very inexpensive. Part was $30 and install $15 done in about ten minutes at the shop. I am 70+ so I appreciate a more upright position after riding without the extender for almost two years!
Thanks for the reply. I'll talk to the bike shop and see if they can get an extender. Can't hurt to try it. Can always go back to the original if needed.