Partition Gold (.429/250gr. or .451 260gr.) Which one????

I will be shooting this bullet in a T/C Omega and Endeavor. My question is, which bullet would you suggest and which sabot would you shoot with them. I am assuming that either the Harvester Green or the Green Crushed rib should work in both guns with the .429. Right? I have some of both. But, if I go with the .451, which sabot do you think would be best. I have a bunch of the Harvester ShortBlacks and some Harvester Red Crushed Ribs. Do you think I would need the Black Crushed rib. Here's a little info. Both guns shoot the Harvester short black and a250 gr. Shockwave real welland the Endeavor shoots the 200gr. shockwave with the supplied blue sabot as well as the 250gr. Any suggestions?