I've ordered the JR-1M, and hopefully will have it delivered later this week. I will most likely be getting a Brierley dog ear vintage 60s p90 for it: http://www.brierleyguitarpickups.com.au/p90.htm
There is also a Benson dog ear sold in the PBG shop:
http://www.pitbullguitars.com/shop/p...-bridge-cream/