So, I want to get a rt1500 and use it on one of my 650s to trim 556 and 308win brass. Was thinking universal decap station 1, s2 re size, s3 or 4 trim. How hard and much work is it going to be to change calibers on the trimmer? I can get two tool heads, set the decap and resize and just move the trimmer between each. Any suggestions are appreciated.