I am doing more product photography. I have not looked at heads for 15 years or so, so I am totally out of touch with developments with styles of head and with mounting plates. I have no loyalty to any brand. I have been using a pan and tilt. Should I consider a ball head that can take heavy loads to reduce slippage risk, or perhaps a pistol grip - or is it most effective to stick with a pan and tilt? Are there any helpful features I should look out for in a modern head and mounting plate system, or anything I should avoid? Thanks for any ideas on this.