Ability to use different sim binary for different application

We are implementing one GRID solution for Wells fargo and has one Grid in production, bcp, uat and dev enviornment where we host multiple business lines totaling over 50 different symphony applications. As we are running in to different issues with different applicatons and resolution to cases open to IBM ,we are getting number of IBM patches to apply to our enviornment. When we recieve these patches it is not practically possible to test all applications and apply this patch for all applications.

In recent case, we had one application which has windopws blue screen issue which was fixed by IBM patch 401818. When we applied this patch to our environment, application experiencing blue screen had issue resolved but another application started seeing race condition in sim and as a result of investigation, IBM provided another patch 428035. We also have another case 03440,122,000 for which we are expecting another patch next week and our app which just got patch 428035 has no intention to apply that patch. So to resolve this situaltion, we would like IBM to ceritfy and officially support below config.

1> Each management host should be allowed to have multiple SSM.exe binaries available.
2> Each compute hosts should be allowed to have multiple version of sim.exe binaries available
3> Each application should be able to use whichever ssm/sim binary combination they want using application profile configuration.

Please let me know if you have any questions.

Thanks
Kiran