Great Britain showjumping chief Rob Hoekstra believes Friday's FEI Nations Cup at Hickstead offers ideal preparation for London 2012.
One of Hoekstra's London quartet, Peter Charles, features in the starting line-up on Friday, along with travelling Olympic reserve Tina Fletcher.
But Charles' Olympic colleagues Ben Maher, Nick Skelton and Scott Brash will also sample competitive action this weekend, riding at the Chantilly Global Champions Tour show in France.
Maher gave his Olympic horse Tripple X III a run in Hickstead's Royal International Vase on Thursday, as did Charles with Murka's Vindicat.
And Hoekstra is upbeat about British preparations as they target a first Olympic medal since collecting team silver in Los Angeles 28 years ago.
"I think riding here tomorrow is good practise before London," team boss Hoekstra said. "The home crowd will definitely be behind us, and hopefully that can give us an edge.
"We had two horses here this morning that are jumping in the Games, and they won't do any more now until London, while Nick and Scott will jump some classes in Chantilly with their Olympic horses, and our reserve Tina Fletcher is jumping tomorrow.
"I think we are on track.
"After Hickstead we will get together and do some more training. We will go into the Games on August 1, but we will spend a few days together beforehand.
"The mood in the camp is fantastic, very positive."