Greetings all, I have been around the huntingnet forums for some time, but have not been around this particular forum, so if this question is redundant, please forgive and advise. Thanks.

I have a 7 year old lab male that is a great upland hunter, will hold points for up to 30 seconds b/4 instinct kicks in and he flushes the bird. I love this dog! He is a BIG dog. Genetics are strong. His health is great now, but wasn't always. He recovered from having heartworms 3 years ago.

My concerns with health history and his size prompted me to purchase a new Puppy this summer. She is now going on 5 months. I took her with on a short hunt this past sunday AM and she did great. She will make a fine dog.

Now closer to the question. I have used a DT systems EDT100 on Ace, the Male for quite a while. He knows he has it on and I have hardly used it for the past two years. If I don't nick him coming out of the kennel, he doesn't perform as well as I want. When He knows it's there he does a snap up job. I want to train the puppy (Sunny) similarly. I can't use Ace's collar on Sunny b/c Ace doesn't respond w/o it and knows when I take it off.

OK:
1) Am I better off using the collar I have and pruchasing another single collar or am I better off to buy a two dog rig?
2) Anyone familiar with the DT systems Collars? Looking at the SPT 7100 and 7000 series collars?
3) Better brands, collars for the $$$?

Thanks for your time!