hi jim
my take on blackout/syngut was that the power side was ok a bit better than the yonex and i strung bo/syn at 23kg/25kg
control was no where near as good as the yonex and balls did fly off of bo/syn,i also had to rein the power side of my F/H as balls did go long not like the yonex im playing with now
volleys/drop shots where much harder to control/create and with the yonex it really is childs play lol
the spin side of bo/syn,well i found it hardly produced any and i play heavy T/S F/H,thats what i put down to balls flying long!!!!!
comfort wise bo/syn was good and like the yonex felt better as tension loss occured.
remember jim im a complete novice with reviewing and im trying to compile accurate info for guys like yourself,but i no that you might find bo/syn plays the opposite to what i think it does and you also might think the yonex plays pants lol
go with bo/syn for now and if you dont like it give yonex a try
ive now got loads of strings to try but i dont want to cut the yonex out yet and when i do yonex will be going straight back in but at a lower tension..
keep me posted on what you go with and how you get on
cheers garry