How do you manage your guides diaries and do you use a booking system for this?

We have had a very large swing towards people booking directly instead of coming through the OTA's this year.

We use Bokun as a booking provider and have been looking at WeTravel & Ventrata all of which have some good and some bad points to them.

The thing im trying to streamline is the guide management part, ideally if we could do that within the booking system then great, but they all have there limitations.

Just wanted to ask the community what you do? What systems you use and if you have any ideas i could look at.

Thanks in advance

James