I haven't been on the P30 platform, I have been shooting P25's & now 45's. But if you do not need to be above 200 ASA, then I would not worry about switching.
As for the Aptus, look at the files and make sure it is what you want. The new V11 is working great and from what I have read, LR seems to do a good job with the files.
Talk to the guys at PPR to do the switch over. If your P30 is a mamiya mount I may have a buyer for you. A friend in Chile is looking for a P30 Mamiya mount.
Best of luck.