I just started using the Renishaw Probe on a TM3. Personally I would nver put 100% faith in a probe for keeping accuracy for more than .005. For some reason there is a hump that I can not get over about probes or CMM's for that matter.
For accurate work involving tenths I would Probe Pocket on an ID then tweak it in with the old .0001 resolution B&S. LOL, I have trust issues but when it involves a $5 to 30K part you can never be too careful.
I see the advantage of a Probe & Tool Setter for fast setups but for accurate work I use as reference only then Tweak the G50's.
I really don't like the quick rapid into the work then a slow touch off. I think they would be more accurate if the touch off were slower.
I would stick to what your doing now.