Reloader-17 and 4350

I've begun experimenting with Reloader-17 in 7.5 x 55. Yesterday I tried several loads with Nosler Custom Competition 175's (practically a clone of the 175 SMK.) with decent results. I used charges of 48.5, 48.8 and 49.2 grains of RE-17, with my best results being with the 49.2 gr load. I got no obvious signs of excess pressure with the 49.2 load, but am somewhat concerned by data in the reloading manuals.

I've found no published data for reloader-17 reloading in the 7.5 x 55 cartridge. A call to Alliant confirmed that they had no such data, but advice that RE-17 had a similar burn rate to IMR 4350. I've checked my reloading manuals for IMR 4350 and found that 49.2 grains is over the limit in both the Sierra and Hornady manuals for 175 grain bullets and 4350 powder.

My questions...

-Is anyone using a load of reloader-17, either at 49.2 grs or above, with 175 grain bullets in 7.5 x 55 and if so, have you seen any signs of excess pressure?
-Is the burn rate of RE-17 different enough from 4350 that I shouldn't obsess about this load exceeding the max for 4350?
-Anyone have any thoughts on this load?

Thanks.