Tried some searching, but I'm get to much of what I'm not looking for.

Is the a replacment caliper of another bike (bolt-on) thats got more bite than the two pots that are on it?

 

I know if you switch the master cylinder off of a 954 to your F4i it will increase your braking power.The calipers on both bike's are the same.I had a F4i and now ride a 954 and the brakes are so much better,one finger is all I need to stop,two or more and you could do stoppies with ease.

 

That's good news. The f4i also lack feedback. I know steel lines would help, but have you noticed more feed back on the 954?

 

Oh yes,even better after installing steal braided lines