Flyanothertday, if you want to fly safe in the mountains then make sure you have an artificial horizon or attitude indicator and constantly refer to your flight instruments. Just relying on the ASI is insufficent - attitude determines your airspeed so that is what you should rely on. It is very strange referring to instruments when you are flying up a valley or into a bowl but if you want to avoid climbing as you enter and descending as you exit then it is what you must do.
A top technique is to set straight and lever power for the speed you want to fly at (typically 40 - 60 kts) and pick a feature on the ground (rock, tussock etc but don't use sheep!) that is approximately in the place in the windscreen that the horizon would be (about a third of the way up above the coaming on Lynx/Sea King). Then fly at the feature keeping it in the same place in the windscreen and check the VSI - if you are climbing then pick another rock further down - if you are descending then pick one higher.
Once practised at this technique you will be able to fly in to valleys and bowls without climbing and make a level turn at the end which significantly aids the subsequent approach to the LS.
As far as advanced mountain techniques go eg in stronger winds then make your approaches using the updraughting side of the featurein a curving flightpath so you never get on the downwind side of the ridge/pinnacle etc - your escape route is therefore always into wind and into updraughting air.