Knee-on-stomach is sometimes seen as a relatively unstable position rename

TID(s):

Controller: 1.148s

Template: 0.049s

Cost: br=2.0, cc=1.783, ch=0.0, cm=0.0, cm+h=0.0, cr=0.0, cs=34.0, cw=17.0, dr=54333.0, dt=2.844, dw=0.0, gqr=0.0, in=34536.0, ir=10510.0, iw=0.0, lh=0.0, lm=10.0, lr=10.0, mcs=0.016, mcu=0.615, minflt=54.0, mr=17.0, nivcsw=216.0, nreqs=46.0, nvcsw=171.0, pf=0.0, pr=0.0, stime=0.072, te=0.353, tf=0.987, tg=0.927, tm=1.593, tr=0.327, ts=0.004, tu=0.296, utime=1.711, va=112467.0