Grinding relics makes absolutely no sense at all. Run real lootruns, then buy the relics (which are ridiculously cheap, Khyber they are ~15k PP per set of 20) from the Auction House. Grinding 20 Tapestries takes about 10% of the time it takes to grind 60 relics, and they sell for enough to buy the 60 relics and have plenty over.
Running Stormcleave under level again is bad advice. It's quicker to run it at level 9, if for no other reason than you can equip better weapons (more DPS = faster kills) and be hasted *all* the time, plus even the squishies can survive that unlucky crit so you keep the 10% no deaths XP. I used to run SC at level 5-6 (even on Elite) back when the game made doing so worthwhile - now you get more XP for running it at level 9 (guaranteed no deaths, instead of 50/50 in a PUG at level 6), and it's faster. Hard and Elite both make sense to run at 10 or 11 - but if you've already burned the first time XP by doing things the pre-Mod 9 way, don't repeat SC.
Just whatever you do, don't get into the horrible situation a lot of us find ourselves in (myself included when I made the mistake of running everything underlevel) of being level 18 and having done all the good and mediocre XP quests in the game on normal, hard and elite already. 18-20 on repeats is a horrid grind, and the road to that grind starts by going to Gianthold at 10 as we did when the cap was 16.