I used my driver “cold turkey” straight to golf course for 18. Tee #1 – par 4, straight down fairway, 30 yards from green. (never done that). Birdied hole (never done that). The rest of the round all fairway shots. I was impressed. I always shot around a 97, that day, I shot an 85. Thought it was a fluke, so I went a few days later to another course, that course was same usually around 97, 98, shot an 87.
I also used all the irons as well with no problem. My clubs are senior flex (graphite)
However, my wedges (regular, stiff) not so good. Still need to get use to them. Overall, I am very impressed with these clubs.