I tried swarming and charming when I got my first charm at 27....it was "Dog slow" as it was put earlier. I got MUCH better exp in groups, and grouping was safer as well. The point of swarming is to get max exp. Chanting of bellowing an exp pet for 3 or 4 minutes is not good exp, so why bother?? That is my point.
For good solo exp for 27-mid 30's.....charm a wolf in DSP, and have it tear thru 5 or 6 zelniaks, then charm something else, and have it finish off your wolf, then get another wolf. I found charm-kiting more efficient than swarm kiting at those levels, and it carried me thru till I had 2 chants in a short amount of time. Also, I found groups to be faster exp than soloing, and more enjoyable.
And on the earring....if the FT works lower than 51, great, lol, will twink the wife's bard with one. I read on the eqtraders site that the FT doesnt work below 51, and thats the only place I ever read info on it at. Gonna find where I read it, and let them know its wrong.
I am just writing this from my own experiances. I am a grouping bard whenever I can, and grouping is sooo much more enjoyable, as you arent twisting no-stop. Time to relax....ahh. I went to the flys in PoD at 49....too many resists, blew whole mana-bar in 3 minutes. Went back at 51, less resists, mana still went bye-bye way too fast. Got solstace earring at 52, went back again, with it and a few upgrades to gear, including a signifigantly larger manapool, and FT1, things went great. Mix of swarming and chanting left me at 75m or so all the time, exp flew. Went from 52-56 in a few days. Been doing AA there now, holding off from 58 till I get dream of Ayonae....seems to not exist on my server. Seen one copy in the bazaar, been on sale for a long time, guy is asking 13k, lol, not gonna pay more than 1k. Would rather get 1 AA per hour or 2 till I find it for that price, than continue to level, and either go without my new songs, or pay that price for them. Mebbe a raid on Ssra and akheva is in my guild's future, lol.
As for having a 2.4 mod or better flute, they recently changed the drop tables for the darkwood piccolo, and it now drops off much easier mobs, I picked mine up in the bazaar for 350p, tho I got lucky on that one...the person selling it was bugged, and not visable (not invis, bugged), so I petitioned, and a guide moved her a bit to the side, and she appeared, otherwise it wouldnt have been on sale for more than a minute or two, and I wouldnt have got it. And having 2.4 or better was the 'ideal' circumstance. Sure, you can swarm in PoD lower than 55, with no flute, and no FT, but I was stating the ideal instance for grinding AA there. If you are like me, and want to get a title before you get flagged, then flies in PoD at level 55 is ideal, and any level 55 toon should be able to get FT1 and a good flute. Better flute=better exp, tho only very very marginally better. Combine or Mino would work fine, a better flute will let you have less resists especially at lower levels.