Regular Tower Catalog

91Fx $219/$199 Sale catalog-------TT90 pro $199

61Fx $169/$160 Sale catalog-------TT61 pro $117

46Ax $125/$115 Sale catalog-------TT46 pro $95

With that price of a Pro 90, that is not a good way to introduce it to the market. I do consider TT and OS to be equal inperformance but it comes right down to cost. If you have a plane that is capable of a 40-60 size, you can get the TT Pro 61 for the same cost as a OS 46AX.