I often make 100% VG mixes, just bear in mind it is rather thick. You may wish to "thin it out" with some distilled water. It depends on your tastes.
Can be harder to wick with it being so thick, and can (in my experience) reduce the shelf life of wicks and coils due to the consistency.
But for a quick answer, yes. VG only E-Liquid is an option if you prefer no PG at all.
You will notice a massive difference VG only though, in vapour production and also tastes as mentioned by Lotuse2003. PG generally carries more flavour and throat hit, whilst VG generally produces more vapour at the "expense" of taste.
Have a play around, you might find 100% doesn't work, but a 20/80 PG/VG hits the spot
