apologies if this has been covered recently, i have been away for a few days
when using gruss i can see different amounts available to back and lay to those shown on the website: earlier in the tennis for example i could see 1.4 (£5994), 1.41 (£12465) to lay on soderling on the website but 1.4 (£4131), 1.41 (£9893) on gruss