Culhane ATPL(H) and Inrat; 2015 vs 2016

[HeloSammy]

With regards to the Culhane ATPL(H) and Instrument Rating books, the 2015 versions are available for sale at a substantially lower cost than the 2016 versions.

Can anyone comment on if there are significant differences between the last year's versions that would substantiate spending the extra cash for the 2016?

Also, does anyone have any positive experiences with any of the on-line prep products available?

[Gordon Bennet]

I would be very surprised if there were any differences.

[HeloSammy]

Does anyone have any experience or opinion on 2016 vs 2017? (Obviously I didn't buy them last year)

[paco]

I agree with Gordon - probably no differences at all.