Just hang in there. I own a Peregrine for years now and it is my opinion it is one of the best hybrids out there. You probably just get to get used to it.
Main difference with your Widow will be the difference in mass. If you have shot your widow for years, you need some time to get used to the lower mass of the Peregrine.
Then there is the center-cut issue. Typically, BW recurves are cut 3/16 past center. The Peregrine is center- cut. This is a huge difference and you will need defenitely shafts with a lower spine.
Then there is the grip. A Peregrine has a very moderate recurve grip and it will be different from your BW.
All this means you will need some time to get used to your Peregrine. And you will have to tune your arrows.
But I will promise you one thing bro: once you get the hang of it, you will have a hard time to stop shooting! The Peregrine is a fantastic bow.
I also own 3 pce recurves, but I can shoot all bows equally well. Just keep in mind that each bow is different and it takes some time to learn how to shoot them.
Btw: I tried a quiver on my Peregrine, but I didn't like it at all. But I sure do like them on my recurves.
Now go out there, make sure you have the right arrows and you have tuned that Peregrine and shoot the heck out of it for a few weeks!