Welcome to the new and improved Proflex / K2 Tech Forum!
comparing Jinder's bike with yours:
1) your fork is at least a pound heavier than Jinder's (especially since he has that Risse air shock on there), maybe even closer to 2.
2) Even with the ti spring, your rear shock is going to be noticeably heavier than an Astro5. My Astro is about a POUND lighter than my SmartShock was, so figure with your setup, you're probably a couple hundred grams heavier.
3) Jinder's frame is much lighter. It may be a tough frame, but it can't handle anywhere near the abuse that your 5000 frame can. With your Ti upgrades, his may still weigh less WITH the shock than yours does without it...
4) Claimed weights are often wrong. Granted, the German magazines are probably the most objective I've read, but even they may have weighed without pedals, for example. (Since most riders use their own preference in pedals, manufacturers don't include that weight). Shimano pedals are pretty heavy, no matter which model you're talking about.
5) You have two bottle cages, he has one...
6) Homemade carbon fiber parts are usually heavier than you think... Plus, you've got fenders.
On the other hand, you have nice wheels and Jinder has... 36 spoke wheels?! (Jinder, are you crazy?!) You could go with lighter tires, but after my recent experience with "racing" tires, I'd say it's not worth it!
If your bike is 27 lbs, I'd say that's great. None of the newer 5-inch travel bikes weigh significantly less than that unless you're willing to spend ~$5000 (in spite what the reviews would have you believe - the "affordable" versions usually weigh 2 lbs more than the top end model in the review). My large 5000 is now just under 29 lbs. (With the Stratos - haven't weighed it with the new Swinger). My wife's medium 5000 is right about 27 lbs with XTR stuff, Mavic CrossLink wheels, Astro5, etc... Some days I'm jealous, but most days I just ride! If it makes you feel better, my bro-in-law has a brand new Cannondale Prophet (remember that bike that was advertised as weighing 24lbs?). It has XTR cranks, SRAM shifters/derailleurs, Avid Juicy 7's, Mavic CrossMax SL wheels (which I covet), Carbon bars, Lefty Max "fork," Swinger Air shock, etc. Basically top or nearly top of the line everything. He paid $2600 for it - and that was from the bike shop where he used to work and still gets stuff at about 4% over cost! Guess how much it weighs? 27 lbs. Guess that's not such a bad weight after all...