Thanks man. [emoji1303]
I can promise you one thing, you absolutely won't regret it. Only thing I regret about T5s, is not buying them sooner. Not 1 coral looks worse under T5s. All my Sps are doing much better, as far as color and growth grow.
My tank is actually shallow. It's 96"x30"x21" tall.
My other light setup was 5 radion G3 non pros, and 6x80w t5s. 4 of the radions had wide angle lenses, and the 5th one that was over my cross brace had the original lens. The highest par reading I was getting was 350. That was at the very top of my tank, just below the water line. That was with all radions and t5s on. The lights were about 10-12" about my tank.
At the time I checked the par, I was running a 16k light schedule, so the lights didn't have lots of white or red. This could have been why the par was so low. Later on I changed the schedule to run all color channels at 100% for 5 hours, and some acros started looking better. BUT, then I started seeing lots of algae, and notice I said SOME acros. After switching to T5s, ALL acros looked better.
Not sure if that helps at all. But I can tell you my radion experience wasn't a good one. It was a hard $3000 lesson.