First off, customer service is second to none! Beth will go to amazing lengths of time & effort to get you into a Tip. My concern was the wait & she found a way around that!
As for performance, outstanding! Speed is not my primary concern, silence, accuracy, pointability then speed. I do not have a chrono nor plan on ever having one. I do have several "fast" bows including Border Black Douglas, Wapiti & Morrison being about the quickest judged solely by what I think & feel, nuttin' scientific like. My tip shoots as well or better & feels as good or better.
Other outstanding bows I have include 2 Rose Oaks, Brackenbury, SheepEater, Caribow & Shrew.
Now, put into my own perspective, I'll be keeping my SilverTip!
That said, it still remains up to your Dad to decide. Best thing possible is to try out as many bows as you can -before- purchasing. What feels good to me may not feel the same for your Dad. Bows are personal things & over time, you will come to appreciate the subtle differences between fine custom bows. Whether it be the feel of the grip, smoothness of draw, steadiness in hand after release etc.
There will be bows you come to love, & some you just don't shoot as much or as well. Even between the same make & model. I believe there still remains some "witchery" in the hand crafting of a bow that can & does make every bow unique unto itself.
Remember also the thrill of the hunt,....for a bow!