I am going on 5 years with my 40 watt and it is starting to lose some power.I was thinkig about upgrading to 60 watts.Any experience lately with either bell laser or laser-tech.I sent an e mail out and both have responded fairly quickly.They are offering a good price to swap out the tube and power supply.I have a 40 watt synrad . bell laser said they would replace with a coherant c55l ?I asked him about his location .He was honest saying seattle is a po box .and the laser stock come out of PA.