Two of my cats (none are SIC) love to be brushed with this silicone brush. One will accept brushing for about 10 minutes and the other for longer. So I get to remove a lot of fur all the time.

Blingbrione Cat&Dog Soft Silicone Deshedding Brush for Bath/Massaging/Grooming Pets, Loose Undercoat Remover/Skin Cleaner/Making Hair Gloss, Gently Comb Suitable for Short Long Hair pets. https://smile.amazon.com/dp/B08Y5SH9GD/ref=cm_sw_r_cp_api_glt_fabc_5ASB54QNEEKJ77MF4JXD?_encoding=UTF8&psc=1