Lustau says their East India solera is a blend of PX and oloroso so you're in the ballpark but a bit on the dry side, which is fine; I upped the anejo (El Tesoro since I didn't have Patron) to 1.75 oz to dry it out a bit. A very good, complex cocktail with strong cocoa notes and a bit of bite from the chile liqueur that differs markedly from most tequila drinks. I gotta admit, though, that the last thing it reminded me of was a Manhattan.