Hi Guy's,
The 100 series Tica Caimans retrieve just over 18" per crank and the 150 series Caimans are about 1 ounce heavier and retrieve just of 21" per crank. It is personal preference but I too like the additional 3 inches per crank the 150 series has to offer.
The CM gold (12 ball bearings) CT Silver (6 ball bearings) have been closed out but still are available. They have been replaced by the KT series (3 ball bearings) the GT series (6 ball bearings) and the GJ (12 ball bearings)
Personally I would chose the CM, CT or KT models. They are the best deal for the money. Realistically, the number of bearings doesn't matter for trolling....
Off the top of my head you can find these reels at:
Kokaneemart.com
MrKokanee.com
and hi'stacklebox.com
I do not sell Tica products but I do represent them.
Vance