In reply to snoop6060:
The original R1 fabric was slightly different, possibly it was lighter/less warm but it was certainly not as durable and the loft compressed earlier, in my experience anyway. It had regular powerstretch panels as well, the top that is not the hoody. The Rab AL Pull On is quite light for the warmth, similar fabric, quite long. I'm not sure how many different forms of 'Powerdry' there are but Marmot have some tops in possibly the same gridded powerstretch as the Rab AL Pull On. Both of those differ from the R1 fabric, which is heavier and warmer and the recycled content might make it less 'soft', not sure...Rab has an anti-bac treatment also.
The new R1 hoody may have more room in the chest as I think it has gusseted underarms, though they change it all the time as per Patagucci methods...the earlier ones had such a feature and I think it makes sense as the R1 fabric doesn't seem that stretchy.
If the zip puller is hard to use, try some Sugru - that is actually one of the applications they list in the packaging...available in places like Wilcos, B&Q ?, George Fisher; stuff comes with a use by date, however.
Jon