Dunco 90 vs 85 easel

Hello, after an intensive search I have to ask help for anyone who owns or have used a Dunco easel.
I am trying to tell the differences between a 90/X and a 85/X model : the first seems to use magnetic strips to stop the paper while the latter uses sinking pins on the baseboard . What are the real advantages of one system over the other,
is anyone able to shed some light?
Thanks
Roberto

85/x series with pins.
90/x series with slots.
The 90/x series is more easier especially in almost dark when doing RA-4 prints.

You can also have a mix: 88/x serie.

I have the 90/5 pro: 40x50cm for over 10 years. It's a nice easel.

Regards,

Robert