GWD versions

I am thinking to print out GWD. But I found some versions on line like TTGWD, XYGWD, Gigi GWD. Could someone tell me which one I should print out, which one is the most recent version and which one was dicussed most frequently?

I checked by myself first.Sometimes the discusion is indicated what version we are talking about, but sometimes not. Does it mean a certain default GWD if we don't mention it's TTGWD or xy or gigi. I didn't find any post for my question and i created one to ask.

Thank you 

TTGWD is the most recent version and XYGWD is the one which was discussed a lot.

you should take into consideration how long you will spend on the mock test of GWD. if it is like 1 month. then you should chose XY. but anyway i think you should practice GWD on computer at least for 5 tests.

we usually make it clear which version is discussed. what do you mean by default GWD.

Thanks a lot, stellaleigh. You answer is very clear.

Default GWD, I mean the GWD whose version is not memtioned in the post.