OPJose - send them back and get the nice ones from Robert. Very nice to deal with, and I paid on Sunday - he sent me Fedex tracking info first thing this morning. I ended up paying $150 (with shipping) and have EVERYTHING plus some extras he threw in as well.

I KNOW you ended up paying a lot more, Tower should take them back.

As soon as mine arrive (Wed. I'm guessing) I'll let you know what I think...but I'm pretty sure that these were made for the Cermark F16...turbine, meaning they should easily handle the weight of our planes, as we won't be carrying liters of fuel.