If you get that little bugger under 2lbs its going to be way overpowered with the .15.

I've got a Ripmax Zephyr at 2lb 5oz and that will climb out of earshot within 10 seconds on a OS 15LA.

You might have problems getting it back down too. Mine won't land with the engine running!

Last time I flew It took me about 5 mins to realise it was dead stick!