The only goofy issue with more power is just dialing in your suspension properly... proper tire selection for the kind of terrain you're going to be riding/racing on... in order to be able to actually hook-up and get some traction to the ground becomes more critical.
The other kinda neat thing I like about the KX 500 is that it makes me feel like I
NEED to get back to going to the gym just so that I can tap into this things potential.
Arm pump can be intense on these things, especially since I'm a software engineer and type way more than any human being probably should be... so I'm always kinda borderline carpal-tunnel'ish anyway.
After my first quick lil' ride with this thing near the truck when we went to Victorville... just flat-out ripping-across deep well-established sand-whoops... after the words "Holy Sh!t" uncontrollably shot outta my mouth.... I came back to the truck and told my neighbor "Man!... I gotta start workin' out again... Phewwwww!"
I then proceeded to ridiculously enjoy the rest of the afternoon constantly leaving those guys on their WR250 and CRF250X way-in-the-hell behind me and having to pull over and be amazed at how long it was actually taking for them to catch back up.
And the total grin-inducing topper of the day was my neighbor's buddy talkin' 'bout how his upper arm was still sore from this rock that shot outta my rear tire and pegged him near the shoulder. It was soooo hard to hold back the fiendish maniacal laughter just itching to burst out from within because in that particular incidence... I that was what I was trying to do
I'd always read stories about how fun it is to roost your buddies when you're on a 500. d**n they sure were right about that!