I'm grateful to you ghostface but I can't mix groupos, and i'm shimano
Mr Bump, thanks for all this, I really appreciate the advice. Ideally I'd find some Kforce lights, I missed out on some on ebay recently and regret being tight now.
Regarding pumps, my need is for a pump that would work on our tandem which runs tubeless mtb tyres. I want a clamp because I have screwing on the head and accidentally unscrewing the valve core at the same time. So high volume and non screwy, I guess a hose isn't the most important thing but it really helps. I should kept the old plastic Lidl track pump I inherited with our flat because weight and size isn't an issue on a tandem!