I am the GM/Raid leader of a 10man guild that is currently 8/12. Very recently I had our priest switch from Disc to Holy. As holy he was consistently ranking withing the top 10-30 on WoL, but we were still having trouble with healing. I had him switch to disc and we are killing bosses with much less issues, however he keeps telling me he feels like he is play disc wrong and is not comfortable with it. English is not his first language so tonight he asked me if I could post on some forums and try to get some feedback for him.
Our Comp when he was holy changed pretty frequently. Usually it was HPal/HPriest or RSham/HPriest, and for a brief stint of time it was HPriest/Rdruid (Turnover sucks >.>) with a resto druid as the OH for 3 heal fights. As Disc it has been HPal/Disc with the Druid still as the OH.
Here is his armory: http://us.battle.net/wow/en/characte.../Tpog/advanced
And here are our Logs: http://www.worldoflogs.com/guilds/145305/
He changed to Disc on 4-9, prior to that all our logs are him as holy. Neither of us are sheepish about feedback, if there is something wrong, feel free to lay into it. I really appreciate any feedback you guys might be able to offer. Also I didn't see a "Fix my healing" sticky, but if something like that exists I apologize and will close this post and post there instead.
Again, thank you for any help you can provide.