Pre-made modular systems

[Brakie]

Locking from the top is most likely for convenience! As bones, joints, waistlines, muscles etc pass through the life cycle it is a blessing not to have to get down on your knees and peer up through stinging sweat and turn nuts in awkward angles. Part of the increasing interest in T-TRAK is due to modellers finding big 4ft by 2ft modules being pains to move and connect etc.
Regards, Andrew G.

Around 12-13 years ago I help set up a modular layout..The process wasn't all that slow but,I found it backbreaking since we had to line each modular then crawl underneath to fasten clamps and connect the wiring.

The Kam Konnector system looks to be a vast improvement and can be connected without crawling around underneath modulars-not a happy thought for the young or old.

BTW. I've always thought T Track was the better modular system.