Vas has previously put forward an estimated advantage for a centaur of 150 Elo relative to an unassisted engine with each given equal time. If this is correct, than if the cloud can surpass your system by at least 150 Elo by virtue of improved software and clustered hardware, it should be able to come up with higher quality moves given an equal period of time, more often than not.

as to your point, because a strong corr player or centauer will be able to check his lines quicker with more computing power.

what is more interesting is that i have noticed that more computing power means that corr players have started to play more and more simultanious games.

i see mistakes being made because of it. too much depency on the computer, too little own AN.

I am a correspondence player with rating above 2600 and I do not believe that with human imagination we can play better in the openings
(unless maybe if you talk about the level of the correspondence world champion).

I believe that human imagination is overestimated and it is almost impossible to beat rybka4 or stockfish1.9 with 4 cores at long time control(there may be few GM's who can do it but usually even people who play slightly better than rybka win games at the high level because the opponent plays weaker than the moves of rybka at long time control).

My experience in correspondence games that started in 2008 (against 26 opponents with average rating clearly above 2500 ICCF rating) is that I do not lose a single game but have problem to win even against opponents that are weaker than rybka and the common case is that I get a small advantage both with white and even with black in some cases when the advantage is not enough to win(I got +3 =17 in these 26 games but I am not sure if I can win another one(and I think that I am going to offer a draw in some unfinished games) when I am practically sure that I do not lose).

Note that I do not use a good hardware and I could probably play better with better hardware.
I also did not use a lot of time and I probably perform slightly worse than previous tournaments also because of playing 2 tournaments at the same time that is something that I never did earlier.

Here is my best game when I won thanks to rybka(note that 10.Qd3 is suggested by Rybka3 based on my memory)
32.Bh5 is not the choice of the computer but I suspect that I could win also with 32.Bh3 and I simply did not like opposite color bishops.
I believe that the opponent played weaker than rybka.

http://www.iccf-webchess.com/MakeAMove.aspx?id=203827

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Be2 e5 7.Nb3 Be7 8.O-O O-O 9.Be3 Be6 10.Qd3 Nbd7 11.Nd5 Bxd5 12.exd5 Nc5 13.Nxc5 dxc5 14.c4 e4 15.Qc2 Re8 16.Rae1 Bd6 17.f4 b5 18.b3 Qd7 19.Bc1 Re7 20.Bd1 Qf5 21.Re3 Rae8 22.Bb2 h6 23.Bc3 Rb8 24.Rh3 Nh7 25.Rh4 bxc4 26.bxc4 Nf8 27.Bg4 Qg6 28.Rh3 f6 29.Qe2 Qh7 30.Rg3 Kh8 31.Re3 f5 32.Bh5 Ng6 33.g3 Reb7 34.Qg2 Rb6 35.Kh1 a5 36.Ree1 Be7 37.Qh3 Nf8 38.Be5 Bd6 39.g4 Nd7 40.gxf5 Bxe5 41.fxe5 Nxe5 42.Rxe4 Nd7 43.Re8+ Rxe8 44.Bxe8 Nf6 45.Bf7 Rb7 46.Be6 h5 47.Qe3 Qh6 48.Qxh6+ gxh6 49.d6 Rb8 50.Rg1 Kh7 51.Rg6 Ng4 52.Rg8 Rb1+ 53.Kg2 Rb2+ 54.Kf3 Rd2 55.Rd8 Ne5+ 56.Ke3 Rd4 57.d7