Dear Vic,
I ride a Catalyst with comfort risers and BBB carbon bar ends inboard at the bend along with the BBB version of the Cane Creek ergogrips at the ends of the bars.
The inboard bars do provide a more slightly aerodynamicaly improved position for bowling along. The degree of aero advantage is compromised as one is not reaching forward thus reducing the area presented to the air. This position is not sustainable for a long time as there are no elbow pads as on aero bars and carrying full upper body mass in this way is much more tiring than riding with on the hoods of dropped bars (is this correct usage?).
Despite their marginal benefit I keep them on the bike because they do provide grip change options, I brought them, and I like to think that tucked in and steely eyed I look very much the serious athlete on the 2 mile commute through the park.
Yours, James