Lowry had a 19 PER last year. The highest PER Felton ever had for a full season was 16.6 which included 60 games in New York. Felton generally has been a 13-14 PER player.
Lowry had a 16.5 two years ago and before that he was mostly 14 with a 18 in his rookie year.
If I felt he could re-do last year where it seems like he was breaking out, I'd do #11 for Lowry. He is on an extremely reasonable deal and you could probably give them shawne williams too so it doesn't hurt our cap space that much.
If we had to give up #6, I'm not so sure I'd want to do it. Maybe if they gave us pick #14 back too and Drummond was the guy at #6 for us since I'm not so sure on him.