During a 2 month stay in Guadeloupe-FWI, I fished 7 days on two charter boats, giving a hand to the captains on the West (lee) side of the island. 

During these 7 days, lure fishing, we had 10 bites of Blue marlin. Three of them were gaffed- the same day-, the biggest about 400 pound.

The average size of Blues here is about 150 pound during the winter season wich starts in October and ends in March.

My friend Tony ,who runs a 25 footer charter boat had a really good Marlin bite last monthes, with about 100 marlins boated during November, December, January and February.

We also caught a few mahi-mahi, up to 30 pounds, and some other smaller fish. 

On my boat, I mostly fished FAD live baiting on the East side of the Island and caught some yellow fin tuna up to 25 pound.

•  In June, we did 17 days and raised raised 8 Blue Marlin out of Morocco.

Conventional fishing, we killed a 532 and a 585, released a 600, a 400 pulled the hook, a 800 + missed the pitch, and we had another bite.  

A 600 refused the fly  20 # 

•  In July, we did 7 days off Gran Canaria, Canaria Island,  and only raised a 150 who refused the fly.

• Back to Morocco in August, we did 4 days, raised 19 whites and a blue.  We released 2 whites, one on 30# conv, and one on 16# fly. We broke twice on 2# fly. The blue about 500 refused the fly. 

• In September, we fished 23 days out of Horta, Faial Island, Azores. We raised 30 Blues ( 2 about 1000 ) and 5 whites.

Fun fishing, we released 2 about 700 pitched on 130#

For all the other fish that showed up in our spread, Gladius fished for IGFA records only, trying to beat two record: 

Atlantic Blue on fly 20#, wich is 208 lbs.

 Atlantic Blue conventional 12# , wich is 604 lbs.

Fought an 800 pitched on 12# conventional for 5 hours, we never had it close enough to grab the 15 feet of leader or to free gaff it.
Fought a 650 on fly 20 #for 3 hours, never close enough to gaff it.
Fought a 600 on fly 20 # for 8 hours, never close enough too.
Fought another 600 on fly for 20 min.
Fought two 400 on fly for 1 hour.
The other blues broke / pulled the hook within the first minutes, refused the fly, couldn't be properly teased or refused/missed pitch for conventional.

•  Back in Morocco in October, we did 3 days and raised 13 whites .

Looking for 2# fly White Marlin IGFA record, we broke 6 times.