My first tap was connected to a barbed disconnect and tail piece using the accuflex bev-seal tubing for the last year or so. It took me like 2 hours heating up a screw driver, needle nose pliers, heating up the tubing, the disconnect barb, melting the tubing into a sloppy mess or only getting it 1/3 of the way on, cutting it off, starting over... And even after I had it on, I constantly had drips here and there no matter what type of clamp I was using. I had enough. I just finished my 5 tap kegerator and used John Guest fittings on 4 of the 5 shanks and ball lock keg disconnects and just ordered the parts to convert the 5th. It took me seriously 20 minutes to do 4 lines, including measuring the tubing , Cutting it, removing picnic taps, etc. So far I've not experienced a single drip and 2 of my taps serve soda and carbonated water at 40psi. I will never go back to barbed connections again.
Shameless plug here for Birdman Brewing. I bought all my stuff from them and it was priced right and arrived quickly. I just wish they had more BM logo pint glasses in stock!