Thanks for the inadvertent recommendation! I love the flavors of Burley but my throat doesn't always agree on the matter, so I'll pick up some Golden Extra on my next tobacco order in case Pegasus ends up being too harsh on my throat like Haunted Bookshop and Old Joe Krantz are. I always assumed it was the Perique in them that bothered my throat, but maybe it really is just the Burley.
I don't know if it was mentioned, but you might also try Mac Baren's Navy Flake, as it's burley based and if burley is bothering you, this one should be more tolerable. Though it's not really comparable to regular burley blends, it's much sweeter with that "navy" taste what with the added VA, cavendish, and toppings (rum, citrus, floral essences), so you're not going to get that quintessential regular burley blend flavor, but the woody and floral aspects of burley as the base tobacco will still come through.