Yes, PTTJ is way way way too warm for anything about 8 degrees, for me anyway. Have you considered a wind jacket? Very nice for those chilly days when the temp is a bit middling. Have you considered an insulated gilet? Probably the most versatile piece of cycling kit ever made IMO. Insulated gilet with a wool jersey and merino arm warmers is delightful.
Yes, PTTJ is way way way too warm for anything about 8 degrees, for me anyway. Have you considered a wind jacket? Very nice for those chilly days when the temp is a bit middling. Have you considered an insulated gilet? Probably the most versatile piece of cycling kit ever made IMO. Insulated gilet with a wool jersey and merino arm warmers is delightful.