Also, how briskly you work the lever will often affect the amount of sear engagement. Slowly can equal less, brisk equals more. Use an aerosol cleaner, after removing all the wood, to blast out everything. Lightly oil the inside, very lightly. Then very lightly grease the sear engagement using a high quality synthetic gun grease. I like the little tub Brownells sells with a fine painters brush. I bought mine years ago, I've about used up what was stuck to the lid.
Use it sparingly.
