You really can tell your hight and speed during landings? Have you ever tried not to do it by the book? Just land. Dont think about your hight, speed or angle, just look on the ground where you want to get groundcontact, aim a bit before that, bring it down there, just before groundcontact flare a bit and land where you initially wanted by reducing the liftpower.
I dont get why many folks stick to checklists and procedures for startups and stuff like landing. Unless you land on a carrier or under bad weatherconditions there is no need for ils approach in dcs. You should know the gerneral speedlimit but to be honest i would recommend you to fly as slow as possible on the verge of a stall, so you reduce the braking distance.
So try to just see and feel where your chopper is going to be and if you fear him to get down too quickly, apply,more liftpower. But keep your eyes out of the cockpit, landing is no magic.