Anyone using Oar Rights on their Cataracts know if you've got the large or small Oar Rights? My old oars had a rubber stopper with an oar right type of extension on them. On my new Cataracts, I ordered the large Oar Rights and they are too large. The Cataracts measure 1 7/8 outside diameter. The Small Oar Rights say they'll only fit up to 1 5/8. The large Oar Rights fit 2 - 2 1/4 inches. Too large for the Cataracts. Will the small Oar Rights extend far enough to go over the 1 7/8 Cataract shaft, or do I need a sleeve under the large Oar Rights? Thanks!