Is it the All Condition Armadillos or the Schwalbes that make you feel like riding through treacle?
I changed from Marthon Plus to the Spesh A.C. Armadillos on my hybrid and found the Spesh ones, which have far less prominent tread, smoother.
I am looking for some winter tyres for my road bike at the moment. Having looked on a few CC threads and read reviews elsewhere, I have narrowed it down to the Spesh A.C. Amadillos, Continental Gatorskins or Continental G.P. 4 seasons, mainly as they get decent reviews. At present, I am leaning towards Gatorskins, mainly due to cost. 4 Seasons vary between £55 and £60 a piece (although there is an LBS nearby that has them advertised at £45), Armadillos £40, and Gatorskins £30. Halfords have Gatorskins in at £27.99, but with Cycling UK 10% discount it will come to £25.20 or just over £50 a pair, which is less than the price of a single 4 seasons.
Spesh felt like riding through treacle. The schwalbes run so much quicker with a similar amount of puncture protection.
Gatorskins? I wouldn't touch any Continental tyres with a bargepole - cos if I did they would puncture at the slightest touch. However other peeps swear by them.