I own a bester 1200, and a king 4000. Right now I have a dovo that was sharpened by Lynn. I have a SRD strop and a leather paddle strop loaded with hand American 0.5 micron paste. I use the pasted strop maybe once a month for about 10 strokes per side to refresh the edge.

Would I eventually need a stone to touch up my edge?
if so what would be a good inexpensive stone?
Would one stone be good to bridge the gap from my 4k to my pasted strop?