I haven't had a reduced dose myself, but peripheral neuropathy is a not uncommon side effect of taxol and a reduced dose is one option open to oncologists. Your oncologist obviously thinks taxol is a preferred option for you (as did mine) but is trying to minimise long term damage. 6 more sessions at 80% is still likely to be a therapeutic dose. There's a bit of leeway in the estimation in what constitutes a therapeutic dose. Sounds like your oncologist is genuinely trying to get the best outcome for you.