Some members have been very lucky, having some daytonas sec@6 for over 3-4 years with no problems. Some have lasted few weeks. You never know.. you might be one of the lucky ones.
Yes Yuki is a very freindly guy and he is a TD over at Repgeek, his cases sre not as expensive as Phongs or NDT, his prices round the 500-600 bucks and are great as well, not as good as Phongs but very very nice.
Phong: jewelryandwatch.com
NDT: ndtradingcorp.com
Yuki: yukiwatch.com
MBW: ask Narikaa, he is a TD here. Go to his section and shoot hi a pm.
And read up a lot bro since they all have its pros and cons. Use the search function