Thanks I'll try them.
These are my current selection - https://www.amazon.co.uk/gp/product/B00OBSMGZY/ref=ppx_yo_dt_b_asin_title_o01__o00_s00?ie=UTF8&psc=1 Slightly softer than the official Philips version but otherwise no problems.
Fair enough. I'm always suspicious of third-party things like toothbrush heads though, having been burnt more than once. Which particular ones would you recommend?
I agree about the replacement heads, but I still use Sonicare, I just get third-party replacement heads. 20 for £17 on Amazon.
Sonicare toothbrush heads back in stock