When England opens this way, I find it very difficult for Turkey to win:
F North Sea convoy A London -> Norway
A London -> Norway
F English Channel -> Mid-Atlantic Ocean
With this opening, England is trying to press the corners of the map, fighting over two edges of the stalemate line in Tunisia.
England can get to Tunisia in four turns with the fleet in the English Channel while stopping to pick up Spain. Turkey can only reach Tunisia in four turns by moving Ankara -> Constantinople -> Aegean Sea -> Ionian Sea -> Tunisia, which as you'll notice passes up on the opportunity to pick up a supply center along the way. Getting to Tunisia "on time" is of the utmost importance, because the player who gets there first should generally be able to keep it; Tunisia is far enough away from either player's starting centers as to prohibit sending multiple fleets to capture it from the other player. That this opening allows England to pick up a center along the way, while Turkey cannot, is also a big deal, since it means England will either have more units for most of the game or will have soft-locked a center beyond his side of the stalemate line.
England can get to Moscow in three turns with the army being convoyed to Norway, while stopping to pick up St. Petersburg. Luckily for Turkey, this time, he can pick up Sevastopol on his way to Moscow, and also arrive in three turns. He doesn't have to choose between yielding Moscow or unit parity here, but he also can't realistically pick up Moscow or Warsaw without committing a second army to them.
Why is this opening a problem? All of the initial battles being fought are in or around Turkey's perimeter SCs on his side of the stalemate line. This gives England a huge advantage in being able to initiate the decisive battles of the game, since Turkey is forced to commit extra units or sacrifice builds to secure his part of the stalemate line, while England doesn't have to do the same thing. England is leaving Germany relatively open with this start (not realistically getting armies into Germany until 1903 and very possibly not picking up Munich until 1904), but Turkey is going to struggle to capitalize on this when he has to commit extra units or forgo builds just to secure Moscow and Tunisia.
Is there a weakness to the English opening like this which Turkey can exploit, that I'm not seeing here?