After living with the 1900H ones I put on my Lowrider, I think the only reason I'd ever buy them again would be for space concern reasons (like 3 on a 1590A build.)
The ones that are roughly 20mm wide from SB are a lot nicer -- I don't have to kneel down and change the knobs by hand, I just reach with my foot and turn it (this is with socks but no shoes -- don't like wearing shoes at church while I play. I'm odd.)
I bet chickenhead knobs are even easier than that! ;D