Hi @marpet, sorry to bother you again but I have another problem with my subsets:
when I geocode the images and then I execute the subset (using 'geoRegion' option and with the same shape for every image) everythin goes fine except that, due to little geocoding errors (within the dimension of a pixel), the subseted images are of different sizes.
I'll explain better with the following picture:
I got this picture by synchronizing views and cursors of 4 images in SNAP GUI.
The bottom images ( and ) are the subset of the upper ones( and , with subset area the mask you see over the top images) whereas left and right side represent different sensing dates.
Now due to the little difference in the subset mask position over the geocoded images  and , you can see that the subseted image number  has a row less than the number .
How can I fix this issue?
In general I would like to have fixed dimension subseted images, with the subset shape being the nearest as possible to the current given shape (through 'geoRegion').
Hope everything is clear,
Best regards and many thanks for your time and help!