Howdy,
If you go to the search at the top of the page,you will find a bunch of good threads.
The recipe forum has quite a group, also.
Many of us us grill pork loins,because they are so lean,cook so quickly,and dry out very easily.
They don't have a lot of flavor, so brining or injecting helps a lot.
The brining is also a fine method to keep it from drying out.
It gives a cushion,in case you cook a few degrees higher internal.
Smokin' has a strong flavored,oriental type marinade in the recipes that works well.
If I am going to hold it, to finish as chops on the grill,I try to get it off in the high 130�s internal temp.
If I intend to eat, after only resting it for 20-30 mins.or holding a couple hrs. in a cooler,I try to get it out between 140�-145�.
It will rise another 5� while in the foil,usually.
Hope this helps a little.