I weigh 143 lbs and I'm trying to decide whether I should go with the 5'8 or 5'6 hellfire. I surf the on the Gulf Coast of Fl which can be small at times but can also get pretty big and punchy...especially during the winter. The waves do get steep and hollow a lot as well. I think the 5'8 would be ideal but I'm having trouble getting my hands on one so I'm really considering the 5'6. Would the 5'6 still be a good board for my weight? I think I could go either way...as I progress I may be glad that I went went with the smaller one. Any suggestions???

Currently, I ride a 5'10 flex fire which doesn't have quite enough volume for me.