Regular spiral brake housing is good stuff. Routed properly and cut cleanly it will offer all the firmness needed for any decent brake. You have an actual problem somewhere and you need to figure out what it is. Hint: it's not something that can be fixed with compressionless housing. It could be in poorly cut housing, poorly routed housing, or the result of a lever/brake mismatch.
Other sources of flex when using rim brakes include flexy calipers, flexy frames/forks causing canti studs to shift outward, and soft squishy pads.
Originally Posted by
Number400
I cannot imagine how spongy our tandem would be without compressionless brake housings. The brakes have great feel despite the speeds we are hauling down from with our combined weights. I think it's a good investment.
On a tandem with an extremely long rear cable, sure. On a front brake? Regular housing should handle that just fine. Something else is going on here.