I'm with MC direct or one of their partners via them. Costs about 220 a year. No tracker fitted or asked for. I have considered getting one. My bike is old and not worth as much these days however.
I got MCN for £236.84 when I checked online with a tracker. I have yet to see what they do for a multi-bike policy - I tried phoning them once but the guy on the other end wasn't very good so I'll try again next week...
I bought insurance from Suncorp (Australia) yesterday and they asked about a tracker, engine immobiliser or steering lock. It didn’t make any difference, they insured me anyway.
Best wishes.