Updated 2/16/16, 2/27/16, 3/5/16, 5/6/16
F.P.R. Jaipur Demo color Clear nib Fine
Appearance & construction: (average)
2/27/16 First Impression: This is a very good looking demonstrator with piston feed. It performs well. No hardstart. No skipping. No scratchiness. Even flow. The nib is rated an F, but it seems to be somewhere between an F and an M. The wetness is not excessive. It’s just about right for an F-M. Very smooth and consistent writer. I’ll be testing this on my desktop rotation in the coming days and weeks.
2/27/16 Test 2. After about 8 hrs., the Jaipur refused to start. After a few minutes of pressing and shaking, it finally flowed. Bummers. It was great in the first test. I’ve downgraded its performance rating to below average. If hardstarting continues tomorrow, I’m downgrading even further to poor and giving up on this pen.
3/5/16 update: Flushed the nib assembly with water using a bulb syringe. Flossed the slit with a brass sheet. After a week of daily testing, no hardstarting, consistent F line. Slight feedback but no scratchiness. I’m upgrading the performance rating to very good.
5/6/16 update: The Jaipur became increasingly hardstarting over the 2-month testing period. Currently, there’s no ink flow after a day or two. It requires a flush just to get going. I’m retiring this pen.
F.P.R. Guru color Clear nib Fine
Appearance & construction: (very poor)
Performance: (very poor)
2/27/16 First Impression: The Guru doesn’t look as impressive as the Jaipur. It’s a good writer — no hardstart, no skipping, no scratchiness. The nib is rated F, but it’s a wet M. I’ll be testing this on my desktop rotation in the coming days and weeks.
2/27/16 Second test: The Guru has a major design flaw, which makes it “dangerous” for users. The piston knob at the end of the pen is not recessed far enough so that the cap, when posted, will inadvertently turn the knob if you happen to twist the cap to seat it securely or to remove it. Depending on the direction you’re twisting, you could flood the feed and blob ink onto your writing surface or your clothing. The Jaipur, fortunately, doesn’t have this problem. The cap, when posted, doesn’t contact the piston knob, so twisting it doesn’t affect the piston. The guru really ought to be recalled and replaced with an improved design.
2/27/16 Test 3: Hardstarting after about 8 hrs of standing idle. When it did flow, the line was a wet M. This is supposed to be an F. Downgrading performance rating to poor. Will downgrade even further if hardstarting persists. By way of comparison, the Rotring Esprit and Sailor Lecoule have been standing in the same rack for just as long and both started up instantly with no flow problems.
3/5/16 update: After flushing and flossing, the Guru no longer hardstarts. No skipping. No scratchiness. Nice even flow, but this F is too wet for me. Upgrading performance to good.
5/6/16 update: The Guru became increasingly hardstarting to the point where it just stopped writing. It pretty much needs a flushing after sitting in the rack for a day or two. Otherwise there’s no flow. I’m retiring this pen.