As I've Been Listening Lately....

So I've been listening to quite a bit of ufo in the past few weeks, and of course they are amazing. But honestly I noticed something for the first time recently. I think that Phul Mogg's voice might've been at its peak during the Paul Chapman era. He was great all of the time, but you hear a different maturity in his voice during these years.  One of the songs that really show this is "Lonely Heart," because he was very smooth and didn't seem to strain his voice from what I heard. Another great example is "Lettin Go," because he could really rock it out hard without going too hard on his voice. What do you all think?