That is a strange looking wad. One of the problems duplicating any factory load is that you cannot duplicate the smoothness of the inner case wall. This means that you will need to use more powder to generate the same velocity which will result in more recoil.
Try a Rem 209P 16.2 of Clays & a Win Gray wad. These chrono a bit more than 1100 but are as low in recoil as I have found. If you want to have negative recoil & fall forward off the pad,try the following,STS hull,209P,gray wad,about 15 grains of Red Dot & 3/4 oz #9. Put a slice of 20 ga wad in the wad bottom.
Jim.. Ballistic products sells a European wad that resembles the wad you posted.. Not that they are required..I've had excellent results with both the DRXXL and the CB4100 wad.. The Red Dot load I've used about forever.. When you go much lower than this.. I've found the sound to be often erratic..so.. I'd keep 15 grains as my floor and work up from there.. If pressures get to low.. in cold weather you'll have problems.. The new feather-lite powder from Alliant reads well..and it looks like they have managed to keep the pressure high enough for consistent shells at low velocities.. All Good.. Mike
I have found with light loads that the DRXXL seems to have a large variation in report. The CB0178 seems quite consistant. My conclusion (maybe flawed) is that the CB feels quite a bit softer and may provide a better gas seal earlier in the igntion process.
The AA Lite burns well at low pressure. I use it because I could find data on the Hodgdon site that was 1100 fps and under.
Since I don't see 1100 fps loads listed for Red Dot, I have never tried it. 13.5 sure seems low. Does it burn clean at 1100 fps?