Differences the Project RS2 Transport and the (newest) Jay's Audio CD2 Mk 3

Regarding the Jay's cd2 mk III, I just ordered one last week from Alvin Chee at Vinshine to mate with my Pontus II. I researched and read all the pertinent  reviews and owner impressions about both units. Yes, the consensus is the Project Audio RST is a step above in sound quality. Ultimate sound quality is a fleeting concept to me and I am hopeful the  Jay's Audio cd2 mkIII isn't too far behind. If it isn't close  so be it. I am settling on the Jay's cd2 mk III because I wanted to have access to the I2s connection to mate with my Pontus II  and also having a IEC. Accordingly the Project 
Audio has a I2s but mates with the Project Audio Preamplifier/DAC.  I didn't want to pony up for the extra LPS because this would have increased the expense of owning the Project Audio RST. Also, I understand from Alvin Chee that another model called Jay's Audio CD3 Pro mk III is being released at a price around $4995.00 with the CD Pro drive. It much more than I wanted to spend. 

Regards

Chuckie

Ditto about the I2s connection, a must for me. Alvin told me my Gustard x26 pro DAC I2s connection would work with the Jay's. Bingo. Tried the PS Audio pwt cd transport and no go with the Gustard on the I2s connection, so I sent it back.

Anyone with the Project know its height when top tray is open?  Looking at my shelf spaces but never found that spec.  

@akgwhiz 

fully open just under 24cm from base - easy to change CDs at 19cm

I have the 6000CDT and have been quite impressed with it. I read the review that was linked and I'm not sure I would give the detailed accolades he did(I lack the audio vocabulary for sure😏)but my experience has been very good. As the reviewer pointed out, upgrades are one new DAC away. I have it paired with the Schiit Gungnir MB and the internal DAC of my P6. I can toggle between both DACs for a decent A-B comparison. In addition to sound quality, the physical construction appears to be very good. It feels solid,the buttons feel solid, the internal relays are quiet but still audible with each input selection. No regrets.