So I want a weaker version of the Yeti, and for campaign specific reasons, I'd rather have LA than extra hit die... Does this look reasonable for the LA?

Scrawny Yeti
• Monstrous Humanoid type
• Cold subtype: grants immunity to cold and vulnerability to fire
• Large
• Speed: 40 ft land, 20 ft climb
• Starting Ability Score Adjustments: +4 Str, +2 Con, -2 Int, +2 Wis.
• Languages: Giant. Bonus Languages: Common, Sylvan, Goblin, Orc
• Snowsight (Ex): A yeti can see in snow as per the snowsight spell.
• +4 on Hide checks in snowy conditions
• +1 natural armor
• 2 claws (1d4 damage each)
• Constrict (claw damage plus 1d6 cold)
• LA: +3