Test road my friends Triumph speed 4 tonight. He just picked it up last Friday. It's the same bike I used to have but apparently I forgot what it felt like. Good god that thing was fast, it definitely make my xb9 feel sad. I pulled out of the parking lot and gave it full throttle and you could just feel the front end getting light and squirrely. I turned onto a side road, took it to 6k rpm, and without loading the suspension or anything I just gave it a handful of throttle and the front end came RIGHT UP! haha I know we've been over it 100 times here that a 600 is faster than an xb, but it never really sinks in until you ride one again. That really motivates me to replace my sl suspension with a normal s suspension, and maybe an exhaust/remap someday. I don't need any high speed highway wheelies, but I do really miss my 1st gear power wheelies. To be honest the low end on that bike really wasn't any weaker than the low end on my bike either. Maybe normal I-4s have weaker low ends, but even on his bike at 3k rpm it pulled extremely well.
I already planned on picking up a 2nd bike next fall, and I feel like I'm going to have to replace my xb9 with an xb12, because otherwise it's just going to feel like a wimp every time I get on it.