Well, that float test isn't always that accurate.
But, EVOO is an oil that penetrates the hair shaft, and is very heavy. If you use too much of it, that "straw" feeling is what you get. There is probably still a lot of oil in there, so I'd do a clarifying poo or BS wash/ACV rinse.
I only use EVOO as an additive to conditioner on DT's. I have pre-poo'd with it before, though, but find I still have to be careful then.
2c/3a/3b, Fine/med, Dense, high porous, & normal elas.
Lo-poo - Renpure Keratin, SMR, Giovanni SaS
clarifying - mix Johnson's H2T with low poo
Co-wash - Suave Nats. clar. or coco.
RO - GVPCB, Ion Eff. Care, TN.
LI - SMR, Cure Care, or RO
Seal - MO or Jojoba
DT - + honey, ACV, & EVOO to SM masque & GVPCB
PT - Gelatin!, CNPF
Styling - FSG, AIF, BRHG, LALS/PS, GF curl spray gel, SM Souffle/Smoothie, LOOB
Oils - MO!, EVOO, jojoba, GSO, SM Elixer, EVCO, VO5 Hairdressing