My wife's SP101 is spurless hammer model . Her finger gets tired of pulling the stock 14lb trigger so I bought a shooter's pak by wolff springs . My question is should I go 10# or 9# w/the 8# trigger spring . I want it to be easier for her to shoot but don't want light strikes. I haven't replaced the springs on an sp101 in about 5yrs so I forgot what I used before lol.