UPDATE (See description) RC500 - single mode - verse/chorus - sync to drums - odd number of measures

UPDATE:
OK, as you can read in the comments, Steve Anstice got an
other solution which might work even better.
I tryed it out and I like it. Bouth ways got thier advantages and
disadvantages.
In the FaceBook group "boss Rc 500" we are working on how
to sulve some of the verse/chorus problems (and lot of other
problems).
So come join us!!!!
This is what Steve Anstice wrote to me in our FaceBook group:
If you set the number of measures in each track,
then set MEMORY/RECORD/LOOP LENGTH to 1.
LOOP SYNC on both tracks ON - QUANTIZE ON.
After recording you will need to turn LOOP SYNC OFF
on just ONE of the tracks.
This video is about how to use the Boss RC-500 single mode
settings on a tune with a verse and a chorus, in sync with the
drums and where the verse and the chorus have odd numbers
of measures.
Of couse this is only a "surviving solution" for the moment. I still
hope for a "single mode" update from Boss, which could change
the RC-500 into the perfect looper.
- Jesper Rübner-Petersen
Do also check out the videos from:
Ben Rowland
• BOSS RC-500 Verse + Ch...
JeeWee
• Boss RC500 serial vers...
John Paul
• BOSS RC-500 Loop Stati...

[@steveanstice]

If you were to set the measures in track 2 to 5 and then set LOOP LENGTH in MEMORY/REC to 1, and QUANTISE to MEASURE, track 2 recording will stop automatically after the 5 measures eliminating all rhythm drift.
I have my 1,2 and 3 control buttons set to factory settings and after recording Track 1, during playback I press TRACK SELECT then REC/PLAY which sets track 2 ready to record immediately track 1 loop finishes. This makes track 2 absolutely spot time wise. This works great for me.

[@JesperRubner-Petersen]

Also sync to the drum machine?

[@KennyElphickMusic]

Hi Steve, I tried your suggestion, however in order for it to work, you appear to need to have loop sync ON for track two which then causes problems with switching between the two tracks as they do not both start at the beginning of the loop. Any thoughts on this? Thanks.