@Andrew *******
You have been advised properly by the Embassy!
For your plans, the 6-months multi entry Tourist Visa is the best choice. The visa is valid for unlimited entries within a period of six months after the date of issue.
Before you take the risk that a second visa-exempt entry might be refused because it will happen too closely dated after your first stay, it is always advised to secure a guarantee by using the METV. On a real visa, your entries will be accepted without any worries and without any Immigration official questioning your repeated stays.
Apply for the METV 3 weeks before your planned departure. The processing embassy or consulate will take care to issue the visa as close as possible to your departure, so you don’t lose too many days of the visa validity.
The METV fits in perfectly for an entry, let’s assume your first entry is on the 15th of November. Upon re-entering in early January, let’s say you enter January 10th. You will get stamped in for 60 days until March 9th. You visit Immigration and buy a 30-days extension, taking you to April 8th.
In case your planned return is by the last week of April, then you better do a border run before March 9th - and avoid the 30-days extension.
Upon re-entering let’s say you re-enter on March 10th, you will get stamped in for another 60 days, carrying you until June 9th. And BINGO - everything went smoothly