Does anyone know a way of limiting the number of GPUGrid WUs the project sends to a host? By default it sends 2 per GPU, but doesn't seem to distinguish between Nvidia and non-Nvidia cards. So, on a rig with one Nvidia and one AMD, I have 4 WUs at all times, making it virtually impossible to achieve the 24 hour bonus, even though the card can process a long run WU in 10-12 hours.