cmyk useful in correction for home printers?

[markJ]

Anyone really experienced with photoshop colour correction?

is cmyk mode useful in colour correction when printing out to home printers like hp or epson, when they prefer rgb...

[Albacore]

Do a Google or Wiki search on the topic and this will give you your answers.
CMYK is the colour mode that is used by commercial printers while RGB is for your monitor and inkjet printer.

[RTW1]

Anyone really experienced with photoshop colour correction?

is cmyk mode useful in colour correction when printing out to home printers like hp or epson, when they prefer rgb...

no

http://www.russellbrown.com/tips_tech.html
look down the page to section on printing