mmmm....I may be going out of my depth now because I'm only just at the Multi stage myself (I have 750TT, 560 PIC NO TWIN)...I have spoken to a few company owners who have all said to be the most competitive you need a lot of PIC on twins...its your decision mate...personally I would still put the apps in...by the time its processed and you finally get to the initial training, you could have another 100 hours PIC up your sleeve...you also meet REX Reqs.
Good luck.
Cheers, PA