I find recording in 1080 to be a bit redundant, the file sizes are enormous, you need a really fast computer to be able to edit properly.

720p at 60fps is good enough quality and allows for those slo-mo edits.

I use a piece of software called AviDemux to cut sections out of my films. This won't convert or degrade the quality, it simply cuts out segments.

I then use the GoPro free app to edit the clips together, add music and transitions.
Takes about ten minutes to create a small edited video.

Example of my Scotland video is on my Facebook page:

https://www.facebook.com/onemooseonemotorbike

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Bike: 2013 XT660Z, TKC70 tyres

Mods:
Barkbusters, Scottoiler, DIY Tail Mod, DNA Stage 3, Power Commander V & O2 Eliminator, Exan X-Black Stainless exhaust, Tool tube, Ohlins linear front fork springs, Nitron rear shock, JT front and Supersprox rear sprockets, D.I.D. VX 520 chain, Adventure Spec bashplate, DIY USB Outlet, DIY chain guide, Kev's Throttle mod

http://www.facebook.com/onemooseonemotorbike