Thanks for making my mind up I think I will buy a pact it looks more stable and a lot bigger shooting window good luck on the CHRONY`sBig Bore said:I have been using a PACT Professional for at least 10 years now. I could not be more pleased with it. When a shotgun slug sabot damaged the screen holders, PACT was super fast in sending out new housings. They worked with me to determine that the sensors were OK and did not try to sell me more than what I needed. Four housings (in case it happened again) for $25 verses several times more if the sensor had been damaged. I could not wish for more in a product.