Swamp Dawg, this is something I feel you should try for yourself. Guys here most likely have expressed 'their experience', (and that's all well and good).
But that may or may not work for you. Last year I bought the .029 Matrix ST ViPIN TR, my buddy (same age, 49) bought the same sight with the .019 pins--I ordered it directly from Trophy Ridge after seeing them at the ATA show. Well thank God I ordered the .029' for myself. On my buddy's bow, I could NOT see his pins--I mean I could--BUT, it was not what I liked. With my style I fade the pin and concentrate on the target--but there wasn't any pin to see with the .019--it was as if nothing was there---yet the .019 pins work great for him.
What's good for the goose may not be good for the gander!!!
Check this out for yourself--JMHO.