Anyone have any experience with the difference between the C9 bulbs that have the 8mm bullet node vs those that have the two pieces of 5050SMD. I'm trying to decide whether to go with RayWu's epoxy filled version which are the based on the 8mm nodes or with HolidayCoro's Pixabulbs. There is a $15.00 per string difference. Curious is if there are any other advantages or disadvantages other than price. Thanks.