Rotosound flats 100-40 , how stiff are these?

[shoulderpet]

Hi 

Am considering giving these a try, been a while since I used these so can't remember to much about them, I am currently using Swingbass 105-45 gauge and considering these in 100-40 gauge which is roughly in the same ballpark tension wise but obviously tension and stiffness are two different things, how do these compare to Swingbass in terms of how stiff they feel? Thanks 

[Lozz196]

From recall pretty much the same, if anything the flats are a bit stiffer as I found the Swingbass easier to play.