Yes, it is normal for the Gen-Y Glyder Shock Absorbing Ball Mount # 325-GH-12001 to slope down when loaded. This particular hitch is rated for trailers up to 7,000lbs with an optimal tongue weight of 400-700lbs. There is no adjustment available for the hitch but do understand the hitch does have a 500 mile break in period to get the hitch to optimal performance. view full answer...