I use my 45mm gingher most often and my 60mm quick change olfa for PP and thicker fabrics and batting and fleece I also have a 45mm ergomic that I used to use before I got the gingher off of ebay for a good price. I would say I use my 45mm the most but you still need the 60 for other things. The gingher cutter and blade I feel cut way better than my olfa ergonomic but about the same as my quick change olfa. the ginghers are more pricey but if you search on ebay you can get one for a relatively decent price, and the blades to me are better and last longer

might be your mat and not you bladed, a new blade shouldn't skip

I have both fiscars and ofa ergomatic 45mm

Olfa 60mm is my preferred cutter.

45mm. I have 2 and 1 60 that I can't find for the life of me.

I use the 60 Olfa, for some reason it fits my hand the best. ( I have small hands). Anyway, that is my #1 and then I have an Olfa 45

Olfa and Martelli 45 for most of my cutting but use the Olfa 38 for finish trimming.

DITTO........DITTO............DITTO. I will never use another rotary cutter. I also love their non slip strip ruller. I use it for everything. No more V's in my strips, no more mis-cuts, no more hassle and best of all, not more expensive pre-cuts.

My primary is the Gingher 45 but I also use the Olfa 45....like many of us, I also have several other sizes but rarely use them. I also use the Accuquilt system as well...

I have a Martelli; but I seldom use it. My favorite is the 45 mm Olfa ergonomic.