Probably is bevel. If you have 3k, go on it, than sharpening on 8k, polishing on 10 or 12k Naniwa, and finish on CroX 8-10 laps.
Better solution is (if you have) 2 side paddle strop with diamant pastes 0.5 and 1 micron. I quarantee that diamant pastes 0.5 and 1 micron can replace Shapton 16k or 30 k, but, this is too much costly investition.
So, my procedure is next:
- before shaving I stropping a razor
- after every 12-15 shaves put razor on Paddle strop with diamant pastes 0.5 (15-20 passes) and 1 micron (15-20 passes)
- finish on CroX 5-8 passes, and stropping
When diamant pastes can't sharp razor anymore, than she go on 8k Naniwa (15-20 passes), 10 k Naniwa (20-25 passes), again on Paddle strop with diamant pastes 0.5 (15-20 passes) and 1 micron (15-20 passes), CroX 5-8 passes, stropping and voila, straight razor is ready for shave.
I hope, this will help.