Running

If you've seen it a few times, you must be either working out at an incredibly high intensity, or you're not hitting your max HR, in which case there's more to give which would then change your "zones".

Or I have a very small range within which I can work hard- 175-180 being said range.

At around 185 it feels like someone is cinching a band around my chest and I have to back off.

It would be ideal if I could raise "band-point" to 195 as that would widen my operating range significantly.