Bitcoincharts has 2 channels of data, web api and telnet service.
Does telnet service provide also historical quotes?
In sierrachart feed I'm using bitcoincharts only for historical data (except using "-w" option to disable websocket), but delaying makes big problem - once bridge download historical data (delayed) and then start streaming quotes using websocket (realtime), there remain 15min gap without quotes in datafile, forever. And currently I'm thinking about some clean solution...