I used spring air with wire legs in my intro- had around 50 flights off grass with no issues- Cheap and cheerful.

I used eflite electric with wire legs in my nano off grass-only ten flights before i got bored- again no issues with the gear- (except fitting the nose gear to the nano!)

I dont know anything about the pro lynx but, from my humble experience, id stick with the simplest method and save my money for more expensive gear on more complex models.