These engines weigh:
1) OS 65 la: 535g (18.9 oz)
2) OS 61 FX:23.6 oz
3) OS 46 AX:17.2oz (489g)
4) Supertigre 61 ringed:759g (26.8oz)
5) Supertigre 61 ABC:756g (26.7oz)

So,are they too heavy?
I mean this is a 40 size ARF and Greatplanes suggests 40-50 2str.engine.
I want unlimited vertical so an OS 46 AX is not a good option?[&:]
What engine for this type of flying(unlimited vertical power,hover etc.) do you suggest?