I have a 2.25" SP101 that I carry concealed in my right front pocket.
I have a 3" GP100 that I either carry on my right hip under a jacket concealed or to use for recreational shooting.
I have a 4" GP100 that I carry on my hip when I walk the desert or use for recreational shooting.
All are well-built, sturdy, reliable, accurate and load powerful .357 magnums as well as .30 special and .38 special +P.
I personally hold that the powerful .357 magnum loads are hard on my hands when shooting them from the 2.25" SP101. These powerful loads are buffered quite well on both the GP100's.