Brad - I've fished both Cosomoledo and Farquhar Atoll on an exploratory Swoffing trip in 2005... Over 200 GT's landed between 8 guys in a week... all wading on the flats and sight casting on fly.... the biggest fish puching the 40 kilo mark....
1000's of Bonefish, Snapper, Grouper and a bunch of good milkfish too..... in all 39 species for us...
It is the Jurassic Park of the Fishing world.... Its NUTS!!!
But that being said, it is mainly catered for fly anglers by the better operators, on the live aboard trips to the outer atolls like Cosmo, Farquhar, Astove and Providance.... Most operators are not so keen to get the conventional anglers on to the flats as they reckon its too easy and will mess the fly fishing up for the fly anglers who come in huge numbers( relatively of course, very limited access ), and carry huge cash....
When I fished Cosomo and Farquhar, there was no need for throwing teasers etc for the GT's on the flats, the GT's were everywhere.... Now its become the norm for the guides to throw hookless poppers and bring the GT's into casting range on the flats..... And they take some MONSTERS....
I still don't think that anyone with the right gear and tactics has really explored the Atolls on Poppers... alot of guys get to fish St.Josephs, and such, but all boat based.... for me, the ultimate would be wading the flats and channels with popping stick in hand as you could experience the very best GT fishing on the planet, and you would be land based, wading after the dinghys drop you off.....
Get hold of Greg Burt and see if he can burn you a copy of the DVD I sent him....
I am meeting with Gerhard of Flycastaways ( The BEST GUIDING Operation in Africa and Indian Ocean ) who I did my trip with to discuss possible conventional options with him.... he knows the Seychelles like the back of his hand, and is the right man to speak to...
Hopefully I'll be able to shed some light on further possibilties in the near future....
But as has been stated above, its not a cheap place, and you guys do have some pretty amazing options alot closer, but I can promise you that Seychelles is like nowhere else on earth.....
GT's, Doggies,Bones, Milkies, Snapper, Sailfish, Yellowfin.... endless...