My fred triple Pedal Force RS. 17.8 lbs with a Power Tap rear hub. It's lighter than my 2011 Tarmac comp with full Rival and a 52/36 Dolomites compact which is just over 18 lbs. Ultegra 6703 shifts fantastic. Whoever says the front shifting suffers has not spent any time on Shimano's latest.
Next Saturday is the Devil Mountain Double century, 206 miles & 20,000' of climbing in the SF Bay Area. I look forward to using 52/39/30 with 11-26 vs 50/34 11-27 the previous two years I've done this ride. I'm 5' 7" 140 and having a 52 outer is the only way I can keep up with bigger riders on descents.