Quickie semantic question

[Sella Rush <SellaR -at- APPTECHSYS -dot- COM>]

** If it's after 3pm PST, ignore this question **

I want to say that, over time, a process takes longer and longer to
complete.

Should I say:

"you've found it increasingly more time-consuming to..."

or

"you've found it increasingly time-consuming to..."

or either?

Thanks, Sella