So glad that you got some answers!

Yes, ET-CALR is suspected to be a somewhat different "animal" than ET-JAK2. The big difference now is that it keeps many of us CALRs in the low to moderate risk groups, which means we don't need to start HU as soon.

Age alone is not a reason to write off BMT. It's not something I would consider given other health conditions and low income, but it has clearly helped many folks here get a second chance!