Originally Posted by toddler
The 500 xc-w has more low end power in "mild" mode than the EXC does in stock mode. I do not think you will see the power of the 500 downgraded to a 350 unless you do something drastic. You do get used to the 500's power in technical singletrack, but it is a lot of power for singletrack.
For myself I'm faster on a 350 vs the 500, but I prefer the 500 for more dualsport type of riding and I think the 500 is more versatile.
Good luck in your decision
I'm faster in the single track on the 500 than I was on my 390 Berg, don't know why but I'm looking forward to the next Enduro