Over the last few years I've used single part flexi as "the norm" even tho sometimes an unmodified addy would suffice. It costs a little extra but worth it imo.
Do you use an unmodified adhesive when it will do the job or do you plum for the modified?

i always use flexi nowadays also,used to use un-modified on concrete floors but with Tile Giants prices theres virtually no difference

I will only use a C2 minimum..

Mostly I do the same as you Doug. Only if I need to cut costs do i use a lower spec addy ( as long as it is suitable for my needs of course)

always buy flexi

i use C2 as i've got good supplier and v/good price.

always use a C2

Always flexi, because i buy it by the pallet.

never less than C2-S1

Always use flexi, for the extra quid or so why bother with anything else?

As DC says, virtually no price diff so no reason to use anything but flexi

Always flexi.

missyT

Flexi for me too, they are easier to use nowadays with longer open times and better predictability, only use unmodified if my customer has supplied it or cost of flexi is prohibitive

Flexi for me

And for me.Always.

flexi,flexi,flexi

The poll is quite conclusive!!

flexi for me to

always flexi get it same price!