I think SRMs are probably the best overall, especially if you have to have the DA9000 crank...but keep in mind the SRM crank arms are not REALLY DA9000 crank arms. I don't know why you wish to keep the DA9000 crank arms. I think there are a lot of good options that work well without going straight to the top pricewise. I'm not the kind of guy who will dump my Honda Civic when it starts giving me trouble and then run out and buy a Ferrari. There are plenty of solutions that could work for you and work well. Happy medium. The other "problem" once you get an SRM will be that you will eventually want...and buy...the PC8 computer (more$$$)