Here is the test project with the 1st posts example. To hear, that loops in project are out of time - there must be full project with at least two or three tracks with stretched and glued wave loops on them. You can just try out this by yourself - add to new 130 bpm project a couple of, for example, vengeance loops, stretch them to feat tempo, glue them. Than insert into the project one shot kick samples by 1/4 notes to set right beat points - and play the proj. You will hear that there no solid timed sound. Sound will be weak, because loops drive away from right greed positions. There will be no good groove. So i can't use loops in my reaper projects, because my music became bad timed. And if you will made the same expiriment in Cubendo or Ableton - there all will be ok with timing, the groove will be exellent.