Mike

UP 3 would be a great option. I test flew a Graupner Hawk (same units with scale leg option which are heavy!) today with a UP 3 and the gear worked fine.

I used 3mm festo tube straight onto the nipples...I stretch the tube a little with a phillips screw driver pushed in a few mm. But most have used a short length of 4mm tube then stepped down.

I feel 3mm tube is best through most of the system.

Dave