Solo Mining Percentage

[dsp]

Can a mining app be designed to allow for a percentage of your hashing power to go towards solo mining.

[stergium]

yes of course.
you can do that fairly easy with guiminer.
you can just assign another gpuminer with the same options as your main gpu-pool miner . that way you will "send" to your solo mining half of your hashes. in case of you wanting to produce less for solo you will apply a higher number to -f than your pool mining.