Hello kips and welcome in the hobby. The best advice i could give you on a machine , read some review , watch some video on youtube on the one you want to buy , and check what is the best you can pick for your budget.
Look like a nice vacation , i was up in punta cana for a week, my best find was a go pro hero 3 , a silver ring and a lot of clads , beside me and clive james clynick from toronto there was a lots of compétition in the water , 2 local that were not taking any trash away and following every moves we mades. beach was getting hunt by 2 american and some quebequer. Too many detectorist in the same area , walk as far as 5-6 resort away and same result , thrash left behing and all the good targets were gones. Maybe next year will try another canadian invasion.
Not quite the year you had in 2015 but still respectful. You still found more clad than I did. I wish you a good season in 2017.
From the begining of july to almost mid september last year , there was no hunt on land at all due to a bad knee . spend all that time hunting in the water everytime i had a chance. less clad in the water but good gold.