Thing with trowels is... back in the stone age, we had a roughing trowel and a skimming trowel.. thats it... now , I use the spatz, s*p*r*lex etc.. but at the end of the day, you can more than make do with one roughing and one skimming trowel, fuks sake, saw a picture on facebook, some bloke had bought 9 new trowels... wtf... and these were all plastering trowels.. not margin/gaugers etc... why would he need that many ?? chancer... a trowel should feel comfy in you hand and can be used for the vast majority of jobs.. i use the one skimming trowel, dont feel the need to switch from refina/nela/mt.. from one day to the next... find a trowel that suits whatever the make and stick with that... i think its all gone a bit mad as far as trowels go to be honest,,