I don't visit the forum all the time, so this is a slightly delayed reaction
1 - I admit I have had this problem before. I forget that the written word doesn't have a tone of voice. I write the words I would say, but you can't tell just from reading them that there's a smile on my face, so I apologise for that
2 - BUT....this forum isn't a good place if you're easily offended. Maybe I should have taken account of your relatively small number of posts, but you put yourself out there....
3 - BUT (2)....I genuinely don't see how anyone could possibly decribe a 1200 GS as dangerously underpowered unless there was something wrong with the particular bike being ridden. Maybe it was just the different power delivery, but I have owned a Triumph triple (albeit one of the earliest injected ones) and although it was a different experience from a twin and (to me) closer to a four, surely you'd play around with the rev range and gear selection, trying different approaches? If your test ride (as you mentioned subsequently) was very restricted, that might explain (a bit)
4 - I am a great believer in not trying to swim upstream for the sake of it. Life's too short. If you take a dislike to a bike on a test ride, surely you'd be bonkers to spend serious money on it, just in case you discovered its qualities later? If you're really, really rich, maybe....
Don't worry Neil - people are easily offended, unless they are used to a more Manx/IOM straight talking way
I fail to see how the GS is underpowered (yes, I would like more), but in a dangerous way? Certainly has enough power to hold 120mph+ for sustained periods - and when lots (that should read most) sports bike riders are slowing down too much for every corner, it is very easy to out ride them.
My brother would out ride me on just about anything, even if I was regularly riding the blade.
The GS just makes fast riding more fun than a sports bike - a little bit of a challenge and you have to rev it - but I get a lot more satisfaction overtaking R1's etc. on the GS than I ever did on a similar.
There are better bikes for lots of different things - but the GS is a good all rounder for me, and for that simple reason I spent my cash on one.
To add - I will be flying out whichever GS I own at the time when I emigrate to Oz in the next few years - but then we have Kawasaki stockmans and Suzuki DRZ and quads on the farm there if it's really rough, and I'd probably buy a full on enduro for fun any way.

