In my eyes i think the better idea is to check and identify the issue related to delta.I understand today you have less data so you are able to do the full load daily but for sure after some time the data will be huge.During that time running full will consume all the system resources and it will lead to huge loading time.
I feel the cons i mentioned above are enough to look for the solution that why delta records are not getting updated.
Check the update mode for application 11 if it is queued delta then check in LBWQ whether you get records there or not.Then check if V3 job is scheduled or not to push the data from LBWQ to RSA7.
Hope this helps.
Regards,
AL