Djones,
If you are doing aspettos on rocks etc, doing cave fishing at times in Tunisia i think the smoothskin would be too fragile..i would recommend a lined wetsuit..an interesting concept i use in the summer is the beuchat 1.5mm reversible wetsuit, you can wear it with either the nylon linig on the outside or reverse it and wear it smooth skin side out..its a great wetsuit, very durable, thin, warm etc.. might be what youre looking for...where do you hunt in Tunisia?
check ou the beuchat here:
Mundial reversible 1,5mm BEUCHAT Apnea Suits Egypt Dive Scuba store .com