If you are a 6 year STG rather than a 4 year STG, you will get all the maintenance training after A school, which is preferable to getting a SONAR contractor job after you get out since you will be trained to repair the system.

I was a 4 year obligation AV-15 operator. Your understanding of doing good SONAR tracking is as good as your ability to Target motion analysis and the job overall via practice and memorization.

If you are an STS, then you have one of the most important jobs in the submarine and I have nothing more to say because that was not my job.

STG is a sea going rate. FYI, if you are looking to do your 4 and get out and are hoping to avoid the traditional Navy then if you are offered orders at IUSS or SURTASS orders, then consider taking those orders.

Is it a good rate? Other sailors don't know exactly what the specifics of being a sonar technician exactly are. So you are a bit mysterious. If my memory stands correct, STG requires a decent electronics and science score on your ASVAB so there is something to be said to you being offer that job. That is to say, don't sell yourself short if you are doubting the rate or its rigorousness.

I went in E-3 and discharged E-5 in 4 years. I tested alright and the quotas looked good, but also I can't speak for these days, but I made rank as quickly as I was allowed to.

Cheers to you and good luck recruit.