Are you choosing "reboot to recovery" from the reboot menu while the phone is on?
Instead just choose "reboot" from the menu, and if you have dual recovery installed...then as the phone starts to boot watch the lights at bottom of phone....it should turn violet/purple While its violet/purple, if you press the down volume button, the light will turn orange for a second, then it will start "CWM".
BUT if you wait, then a few seconds after turning purple, the light will turn green and vibrate twice. Now while it is green....press the volume up button (you must do this while the light is green. If you miss it, you have to reboot and try again). The light will change to purple or orange for a second, then Phil touch recovery should start up.
Alternately, if you press volume down while it is green , you will get to TWRP recovery.