Please choose the correct ending to complete the given sentence: Pets and Animals: [header] How to rawhide a saddle tree [title] Place a large piece of rawhide over the tree. [step] The saddle tree is the wood frame that provides the structure of a saddle. The piece of rawhide you use should be more than enough to completely cover the top of the tree.

Ending1: [substeps] Try to keep the leather short enough so that you don't ride over it. If you plan to take your horse to your barn, make sure that the saddle cover is at least twice as thick as the piece of rawhide you plan to use. Ending2: [substeps] If the tree is not covered, you will need to use a topcoat instead. [title] Hook your fingers through the top of the tree and tighten your grip. Ending3: This is important, as the rawhide should be seamless so you don't need to add any unnecessary stitches. [substeps] Allow 2-3 inches (5-7.5 cm) to hang over the sides of the top of the tree. Ending4: [title] Shift the tree from side to side with your left hand. [step] The space between your right hand and the tree is split into two trapezoids.

Answer format: ending1/ending2/ending3/ending4