Since chitchat is the most technically minded section I will ask here. I own an old snorkel boomlift, last summer the cylinder that extends the boom started leaking. So we about killed ourselves getting the boom sections apart to get it out and had it rebuilt.they said it just needed new seals. All went well for 30-40 hours of use, recently it started leaking again worse than the first time. Is it possible or likely that the hydraulic shop messed it up? I would like advice on what to look for since I don't want to have take the boom apart ever again if possible. Thanks!