How do you increase the number of words in the sets (5 words per set of 5 sets)

Hi,

I need advise please!!

How do you increase the number of words in the sets (5 words per set of 5)? Is it advisable? If you add one word to each set, then how do you start retiring the new words? That means after 5 days you will retire 2 words? And you retire 2 words each day from then onwards?

Also may i confirm that the sets do not need to be in categories? Can be a mixture of categories?

I have a few cards of the printed version by gd baby which i bought second hand which are stained by rubber bands melting. Should i

  1. not flash those words?
  2. write the same words on new same size cards - which would not be the same fonts?
  3. try to “repair” the cards as much as possible by using correction tapes and marker - there would be a slight difference in the tone of white colour and also the red words?

E.g. of the effects as per attachment.

Please advise.

Thanx!